Last revised: August 11, 2026
By: Adam Burns
The Baldwin DS-4-4-1000 was one of the most successful diesel locomotives the Baldwin Locomotive Works ever sold. Built from mid-1946 into early 1951, it replaced the wartime VO-1000 in Baldwin’s catalog and gave railroads a modern 1,000-horsepower end-cab switcher for yards, terminals, industrial plants, and short freights. Roughly 500 units went to Class I roads, short lines, steel mills, mining companies, and one Canadian system—Canadian Pacific—before the model gave way to the S-12 under Baldwin’s simplified 1950s nomenclature.
Penn Central DS-4-4-1000 #7960—a former Pennsylvania Railroad unit—at Thorndale, Pennsylvania, circa 1969. The PRR was Baldwin’s largest customer for the model. Robert Eastwood, Jr. photo. American-Rails.com collection.
Production figures and the unit-by-unit roster below are based on John F. Kirkland’s The Diesel Builders, Volume Three: Baldwin Locomotive Works—still the standard reference for Baldwin diesel construction lists.
| Item | Detail |
|---|---|
| Builder | Baldwin Locomotive Works (Eddystone, Pa.) |
| Model | DS-4-4-1000 |
| Type | Four-axle (B-B) diesel-electric switcher |
| Horsepower | 1,000 hp |
| Production | June 29, 1946 – January 19, 1951 |
| Total built | 502 (56 with 608NA engine; majority with 606SC) |
| Predecessor | VO-1000 |
| Successor | S-12 (1,200 hp catalog successor in the simplified line) |
| Electrical equipment | Westinghouse (generator, traction motors, auxiliaries) |
| Largest buyer | Pennsylvania Railroad (136 units) |
| Other major fleets | B&O, Santa Fe, Reading, Seaboard Air Line, Erie, Canadian Pacific, Milwaukee Road, Southern Pacific, Missouri Pacific |
Baldwin’s mid-1940s classification system packed a lot into a short string:
The system was precise but cumbersome. After 1951 Baldwin simplified the switcher line: S-8 and S-12 used “S” for switcher and a shortened horsepower figure. The DS-4-4-1000 and the related DS-4-4-750 were among the last models marketed under the older scheme.
Baldwin entered volume diesel switcher production with the VO series, powered by engines from the De La Vergne design family that Baldwin had absorbed. The VO-1000 (about 548 built) was a genuine wartime and immediate postwar success—rugged, simple, and well matched to yard work. By 1946, however, Baldwin was ready to field its own 600-series prime movers in the same basic end-cab package.
The DS-4-4-1000 that resulted looked, from the outside, very much like a late VO-1000: end cab, long hood, B-B trucks, and a length of 48 feet between coupler pulling faces. Westinghouse still supplied the electrical gear. Internally, the change to the 600-series engines was the real story—first the eight-cylinder 608NA, then the six-cylinder turbocharged 606SC.
Market timing helped. North American railroads were dieselizing yards as fast as builders could deliver. Experience showed that 1,000 to 1,200 horsepower hit a sweet spot for switching, industrial service, and light road work. Smaller Baldwin switchers (VO-660, DS-4-4-600, DS-4-4-750) sold in more modest numbers; the thousand-horsepower class sold by the hundreds. Electro-Motive’s NW2 and later SW series dominated the same niche, but Baldwin’s DS-4-4-1000 proved that Eddystone could still move iron when the product fit the job.
Milwaukee Road DS-4-4-1000 #947 between assignments at Winona, Minnesota, in July 1968. Built as Milwaukee #1902 in October 1949 (Baldwin serial 944), it was later renumbered into the 940-series. Fred Byerly photo. American-Rails.com collection.
Baldwin kept the DS-4-4-1000 model designation across two different prime movers. Understanding the engine codes clears up a lot of roster confusion:
| Code element | 608NA | 606SC |
|---|---|---|
| 60 | 600-series engine family | 600-series engine family |
| Cylinder count | 8 (inline) | 6 (inline) |
| Aspiration | NA — normally aspirated | SC — supercharged (turbocharged) |
| Rated power | 1,000 hp | 1,000 hp |
| Rated RPM | 625 | 625 |
| Production window | June 29, 1946 – January 1, 1948 | January 28, 1948 – January 19, 1951 |
| First unit (Kirkland) | Reading #34 | Erie #602 |
| Approx. quantity | 56 | ~446 |
The 606SC used turbochargers from American Locomotive (Model BF40) or the Elliott Company (Model BF34), depending on the locomotive. Both engine versions drove Westinghouse electrical equipment and rode General Steel Castings trucks of the rigid-bolster, drop-side-equalizer type common to Baldwin switchers of the period.
Why change from eight cylinders to six while keeping the same horsepower? The turbocharged six offered a more modern path within Baldwin’s 600-series development and became the volume standard after early 1948. Spotters cannot always tell 608NA from 606SC units at a glance; builder records and serial numbers are the reliable guide.
Figures below follow Kirkland’s production data for the two DS-4-4-1000 variants. Continuous tractive effort is the rating at speed; starting effort under sand could be higher depending on weight on drivers and adhesion.
| Specification | Value |
|---|---|
| Entered production | June 29, 1946 (Reading #34) |
| Years produced | June 29, 1946 – January 1, 1948 |
| Baldwin class | DS-4-4-1000 |
| Engine | 608NA, 8-cylinder in-line (De La Vergne / Baldwin 600 series) |
| Horsepower | 1,000 |
| RPM | 625 |
| Carbody | Baldwin |
| Length (coupler pulling faces) | 48 ft |
| Weight | 240,000 lbs |
| Height (rail to cab top) | 14 ft |
| Width | 10 ft |
| Trucks | B-B |
| Truck type | GSC rigid bolster, drop-side equalizer |
| Truck wheelbase | 8 ft |
| Wheel diameter | 40 in |
| Traction motors | Westinghouse 362D (4) |
| Main generator | Westinghouse 480D |
| Auxiliary generator | Westinghouse YG40D |
| Gear ratio | 16:76 |
| Tractive effort (continuous) | 33,600 lbs at 8.3 mph |
| Top speed | 45 mph |
| Specification | Value |
|---|---|
| Entered production | January 28, 1948 (Erie #602) |
| Years produced | January 28, 1948 – January 19, 1951 |
| Baldwin class | DS-4-4-1000 |
| Engine | 606SC, 6-cylinder in-line, supercharged |
| Turbocharger | Model BF40 (Alco) / Model BF34 (Elliott) |
| Horsepower | 1,000 |
| RPM | 625 |
| Carbody | Baldwin |
| Length (coupler pulling faces) | 48 ft |
| Weight | 240,000 lbs |
| Height (rail to cab top) | 14 ft |
| Width | 10 ft |
| Trucks | B-B |
| Truck type | GSC rigid bolster, drop-side equalizer |
| Truck wheelbase | 8 ft |
| Wheel diameter | 40 in |
| Traction motors | Westinghouse 362D (4) |
| Main generator | Westinghouse 480D |
| Auxiliary generator | Westinghouse YG40D |
| Gear ratio | 16:76 |
| Tractive effort (continuous) | 33,600 lbs at 8.3 mph |
| Top speed | 45 mph |
The DS-4-4-1000’s customer list is a cross-section of late-1940s dieselization. Pennsylvania Railroad took 136 units alone (PRR class BS-10a in company records)—still the largest single fleet. Baltimore & Ohio rostered 49; Santa Fe 41; Reading split orders between early 608NA and later 606SC units (14 + 30); Seaboard Air Line likewise mixed both engines across large blocks. Erie, Milwaukee Road, Southern Pacific, Missouri Pacific (including St. Louis, Brownsville & Mexico subsidiaries), Chicago Great Western, and Lehigh Valley all bought in meaningful numbers.
Industrial ownership was significant: U.S. Steel’s Columbia-Geneva and Carnegie plants, Patapsco & Back Rivers, Oliver Iron Mining, Calumet & Hecla, Copper Range, and others. Terminal roads such as the Belt Railway of Chicago, Kentucky & Indiana Terminal, Oakland Terminal, and Terminal Railroad Association of St. Louis used the type where slow-speed pulling power mattered more than road speed.
Canadian interest was real but focused: Canadian Pacific took eleven 606SC units (7065–7075), giving Baldwin a foothold north of the border that many of its road models never enjoyed.
Baldwin’s broader diesel story is more mixed. The company never matched Electro-Motive in road-freight reliability or volume. Switchers, however—especially the thousand-horsepower class—were a brighter chapter. The DS-4-4-1000 shows what Baldwin could still do when the assignment matched its engineering strengths and Westinghouse electrical partnership.
As a working machine, the DS-4-4-1000 was a classic American end-cab switcher. The engineer sat at one end with clear views for spotting cars; the long hood covered the prime mover, generator, and cooling plant. Four Westinghouse traction motors, one per axle, gave the locomotive the slow-speed pull that yardmasters wanted. The published continuous rating of roughly 33,600 pounds of tractive effort at a little over 8 mph is the language of drag—not dash. Top speed was listed at 45 mph, enough for transfer runs and branch freights but not a road unit in the road-switcher sense that would soon dominate Baldwin’s (and everyone else’s) catalogs.
That distinction matters historically. In the late 1940s the industry was still sorting out which diesel forms would win. End-cab switchers owned the yards. Hood-unit road-switchers were beginning to own the freights. Baldwin sold plenty of the former and struggled, relative to EMD, with the latter. When writers say Baldwin “could not build a reliable road locomotive,” they are usually talking about road-freight designs and maintenance culture—not denying that hundreds of Baldwin switchers put in honest decades of service from Philadelphia to Los Angeles and from the Mesabi to the Gulf Coast.
Compared with contemporary Electro-Motive NW2 and SW switchers, a DS-4-4-1000 offered similar horsepower and a different mechanical personality: Baldwin engine, Westinghouse electrics, and the heavy, cast-truck feel many industrial operators still praise. Fans of SMS Rail Lines and other Baldwin holdouts often cite starting tractive effort and low-speed control as reasons the old Eddystone switchers remain useful long after most Class I fleets retired them.
Most DS-4-4-1000s spent their careers in the work for which they were built: humping cars, working industrial leads, and covering transfer runs. Some roads rebuilt units rather than scrap them early; Missouri-Kansas-Texas, for example, re-engined a group of its early 608NA locomotives with EMD 12-567C plants around 1959–60. Others ran into secondhand markets, short lines, and scrap dealers as second-generation diesels arrived in the 1960s and 1970s.
In the catalog, the DS-4-4-1000 was followed by the S-12, a 1,200-horsepower switcher that continued the end-cab Baldwin look under the simplified model name. Many crews and fans still lump late DS-4-4-1000s and early S-12s together visually; horsepower rating, builder plates, and carbody details separate them for the careful spotter.
Baldwin left the new-locomotive business in the 1950s (with Lima-Hamilton interests folded into the Baldwin-Lima-Hamilton era). The DS-4-4-1000 outlived the builder in revenue service by decades on several roads and, in a few cases, is still earning its keep in industrial switching.
Given the production total, a surprising number of DS-4-4-1000s still exist. Documented museum and heritage examples include:
In commercial service, SMS Rail Lines (New Jersey) has been well known among Baldwin fans for keeping classic Eddystone power at work. Its fleet has included former Copper Range #101 (a 608NA DS-4-4-1000) and former Pennsylvania Railroad #9069, among other Baldwin switchers—living proof that the model’s slow-speed tractive character still has friends in industrial parks.
Preservation lists change as locomotives move, are cosmetically restored, or leave public view. Confirm current locations with the museum or operator before planning a visit.
Total built (Kirkland): 502
The unit-by-unit tables below list original owner, road number, Baldwin serial number, construction number, and completion date. Early production used the 608NA engine; from Erie #602 onward the standard was the 606SC. Serial numbers are not always strictly consecutive across Baldwin’s entire plant output—gaps can reflect other models or plant accounting rather than missing DS-4-4-1000s.
| Owner | Road Number | Baldwin Serial Number | Construction Number | Completion Date |
|---|---|---|---|---|
| Reading Railroad | 34 | 548 | 72232 | 6/29/1946 |
| Seaboard Air Line | 1417 | 549 | 72233 | 6/24/1946 |
| Reading Railroad | 35 (2nd) | 550 | 72234 | 6/29/1946 |
| Seaboard Air Line | 1418 | 554 | 72791 | 7/23/1946 |
| Seaboard Air Line | 1419 | 555 | 72794 | 7/24/1946 |
| Reading | 36 (2nd) | 556 | 72793 | 7/27/1946 |
| Reading | 37 | 557 | 72794 | 7/28/1946 |
| Missouri-Kansas-Texas (Katy) | 1000 | 558 | 72795 | 8/14/1946 |
| Missouri-Kansas-Texas (Katy) | 1001 | 559 | 72796 | 8/15/1946 |
| Missouri-Kansas-Texas (Katy) | 1002 | 560 | 72797 | 8/28/1946 |
| Missouri-Kansas-Texas (Katy) | 1003 | 561 | 72798 | 8/29/1946 |
| Missouri-Kansas-Texas (Katy) | 1004 | 562 | 72799 | 9/2/1946 |
| Missouri-Kansas-Texas (Katy) | 1005 | 563 | 72800 | 9/2/1946 |
| Reading Railroad | 38 | 564 | 72801 | 8/25/1946 |
| Reading Railroad | 39 | 565 | 72802 | 8/25/1946 |
| Seaboard Air Line | 1420 | 566 | 72803 | 9/5/1946 |
| Seaboard Air Line | 1421 | 567 | 72804 | 9/16/1946 |
| Seaboard Air Line | 1422 | 568 | 72805 | 9/18/1946 |
| Seaboard Air Line | 1423 | 569 | 72806 | 9/19/1946 |
| Seaboard Air Line | 1424 | 570 | 72807 | 10/5/1946 |
| Erie Railroad | 600 | 571 | 72808 | 11/27/1946 |
| Erie Railroad | 601 | 572 | 72809 | 12/20/1946 |
| Western Maryland | 133 | 573 | 72810 | 12/18/1946 |
| Western Maryland | 134 | 574 | 72811 | 12/28/1946 |
| Detroit Terminal | 103 | 575 | 72812 | 1/27/1947 |
| Norfolk Southern (Original) | 1001 | 576 | 72832 | 1/21/1947 |
| Norfolk Southern (Original) | 1002 | 577 | 72833 | 1/22/1947 |
| Missouri-Kansas-Texas (Katy) | 1006 | 578 | 72834 | 2/28/1947 |
| Missouri-Kansas-Texas (Katy) | 1007 | 579 | 72835 | 2/21/1947 |
| Missouri-Kansas-Texas (Katy) | 1008 | 580 | 72836 | 2/19/1947 |
| Missouri-Kansas-Texas (Katy) | 1009 | 581 | 72837 | 2/19/1947 |
| Missouri-Kansas-Texas (Katy) | 1010 | 582 | 72838 | 3/10/1947 |
| Copper Range Railroad | 100 | 583 | 72839 | 4/7/1947 |
| Copper Range Railroad | 101 | 584 | 72840 | 4/17/1947 |
| Reading Railroad | 26 | 585 | 72841 | 4/25/1947 |
| Reading Railroad | 27 | 586 | 72842 | 5/12/1947 |
| Reading Railroad | 28 | 587 | 72843 | 8/8/1947 |
| Reading Railroad | 29 | 588 | 72844 | 9/1/1947 |
| Reading Railroad | 30 | 589 | 72845 | 9/9/1947 |
| Reading Railroad | 31 | 590 | 72846 | 9/10/1947 |
| Reading Railroad | 32 | 591 | 72847 | 9/19/1947 |
| Reading Railroad | 33 | 592 | 72848 | 10/1/1947 |
| New York, Chicago & St. Louis (Nickel Plate) | 100 | 593 | 72894 | 10/28/1947 |
| New York, Chicago & St. Louis (Nickel Plate) | 101 | 594 | 72850 | 10/30/1947 |
| Columbia-Geneva Steel Division (U.S. Steel) | 21 | 595 | 72851 | 7/23/1947 |
| Columbia-Geneva Steel Division (U.S. Steel) | 22 | 596 | 72852 | 7/22/1947 |
| Columbia-Geneva Steel Division (U.S. Steel) | 23 | 597 | 72853 | 12/4/1947 |
| Columbia-Geneva Steel Division (U.S. Steel) | 24 | 598 | 72854 | 12/3/1947 |
| Columbia-Geneva Steel Division (U.S. Steel) | 25 | 599 | 72855 | 12/14/1947 |
| Columbia-Geneva Steel Division (U.S. Steel) | 26 | 600 | 72856 | 12/9/1947 |
| Belt Railway Of Chicago | 405 | 601 | 73481 | 7/12/1947 |
| St. Louis Southwestern (Cotton Belt) | 1023 | 602 | 73482 | 12/13/1947 |
| St. Louis Southwestern (Cotton Belt) | 1024 | 603 | 73483 | 1/4/1948 |
| St. Louis Southwestern (Cotton Belt) | 1025 | 604 | 73484 | 1/4/1948 |
| St. Louis Southwestern (Cotton Belt) | 1026 | 605 | 73485 | 1/1/1948 |
| St. Louis Southwestern (Cotton Belt) | 1027 | 606 | 73486 | 1/1/1948 |
| Owner | Road Number | Baldwin Serial Number | Construction Number | Completion Date |
|---|---|---|---|---|
| Erie Railroad | 602 | 607 | 73568 | 1/28/1948 |
| Erie Railroad | 603 | 608 | 73569 | 2/7/1948 |
| Erie Railroad | 604 | 609 | 73570 | 2/8/1948 |
| Patapsco & Back Rivers | 337 | 610 | 73571 | 3/2/1948 |
| Patapsco & Back Rivers | 338 | 611 | 73572 | 3/4/1948 |
| Patapsco & Back Rivers | 339 | 612 | 73573 | 3/8/1948 |
| Patapsco & Back Rivers | 340 | 613 | 73574 | 3/9/1948 |
| Patapsco & Back Rivers | 341 | 614 | 73575 | 3/22/1948 |
| Atchison, Topeka & Santa Fe | 2260 | 615 | 73576 | 2/23/1948 |
| Atchison, Topeka & Santa Fe | 2261 | 616 | 73577 | 2/23/1948 |
| Atchison, Topeka & Santa Fe | 2262 | 617 | 73578 | 2/15/1948 |
| Atchison, Topeka & Santa Fe | 2263 | 618 | 73579 | 2/15/1948 |
| Atchison, Topeka & Santa Fe | 2264 | 619 | 73580 | 3/3/1948 |
| Atchison, Topeka & Santa Fe | 2265 | 620 | 73581 | 3/3/1948 |
| Missouri Pacific | 9120 | 621 | 73582 | 2/21/1948 |
| Missouri Pacific | 9121 | 622 | 73583 | 2/21/1948 |
| Missouri Pacific | 9122 | 623 | 73584 | 2/20/1948 |
| Missouri Pacific | 9167 | 624 | 73585 | 3/18/1948 |
| Pennsylvania | 5968 | 625 | 73586 | 3/19/1948 |
| Pennsylvania | 5969 | 626 | 73587 | 3/20/1948 |
| Pennsylvania | 5970 | 627 | 73588 | 3/23/1948 |
| Pennsylvania | 5971 | 628 | 73589 | 3/24/1948 |
| Pennsylvania | 5972 | 629 | 73590 | 3/25/1948 |
| Pennsylvania | 5973 | 630 | 73591 | 3/26/1948 |
| Pennsylvania | 5974 | 631 | 73592 | 3/27/1948 |
| Pennsylvania | 5975 | 632 | 73593 | 4/1/1948 |
| Pennsylvania | 5976 | 633 | 73594 | 4/2/1948 |
| Pennsylvania | 5977 | 634 | 73595 | 4/3/1948 |
| Pennsylvania | 9177 | 635 | 73596 | 4/7/1948 |
| Pennsylvania | 9178 | 636 | 73597 | 4/8/1948 |
| Pennsylvania | 9179 | 637 | 73598 | 4/11/1948 |
| Pennsylvania | 9180 | 638 | 73599 | 4/18/1948 |
| Pennsylvania | 9181 | 639 | 73600 | 4/18/1948 |
| Pennsylvania | 9182 | 640 | 73601 | 5/15/1948 |
| Pennsylvania | 9183 | 641 | 73602 | 4/18/1948 |
| Pennsylvania | 5978 | 642 | 73603 | 5/20/1948 |
| Pennsylvania | 5979 | 643 | 73604 | 5/20/1948 |
| Akron & Barberton Belt | 26 | 644 | 73605 | 3/19/1948 |
| Columbia-Geneva Steel Division (U.S. Steel) | 27 | 645 | 73606 | 6/15/1948 |
| Columbia-Geneva Steel Division (U.S. Steel) | 28 | 646 | 73607 | 6/13/1948 |
| Columbia-Geneva Steel Division (U.S. Steel) | 29 | 647 | 73608 | 6/18/1948 |
| Columbia-Geneva Steel Division (U.S. Steel) | 30 | 648 | 73609 | 6/22/1948 |
| Columbia-Geneva Steel Division (U.S. Steel) | 31 | 649 | 73610 | 6/27/1948 |
| Columbia-Geneva Steel Division (U.S. Steel) | 32 | 650 | 73611 | 7/5/1948 |
| Long Island Rail Road | 450 | 651 | 73612 | 4/26/1948 |
| Carnegie Steel (U.S. Steel) | 74 | 652 | 73613 | 6/16/1948 |
| Carnegie Steel (U.S. Steel) | 75 | 653 | 73614 | 6/11/1948 |
| Pennsylvania | 9122 | 655 | 73616 | 6/16/1948 |
| Pennsylvania | 9123 | 656 | 73617 | 6/18/1948 |
| Pennsylvania | 9124 | 657 | 73753 | 6/19/1948 |
| Pennsylvania | 9125 | 658 | 73754 | 6/23/1948 |
| Pennsylvania | 9126 | 659 | 73755 | 7/2/1948 |
| Pennsylvania | 9127 | 660 | 73756 | 7/7/1948 |
| Pennsylvania | 9128 | 661 | 73757 | 7/21/1948 |
| Pennsylvania | 9129 | 662 | 73758 | 7/22/1948 |
| Pennsylvania | 9130 | 663 | 73759 | 7/23/1948 |
| Pennsylvania | 9131 | 664 | 73760 | 7/24/1948 |
| Pennsylvania | 9132 | 665 | 73761 | 7/25/1948 |
| Pennsylvania | 9133 | 666 | 73762 | 7/27/1948 |
| Pennsylvania | 9134 | 667 | 73763 | 7/27/1948 |
| Pennsylvania | 9135 | 668 | 73764 | 7/28/1948 |
| Pennsylvania | 9136 | 669 | 73765 | 8/1/1948 |
| Erie Railroad | 605 | 670 | 73766 | 6/14/1948 |
| Erie Railroad | 606 | 671 | 73767 | 6/14/1948 |
| Union Pacific | DS1206 | 672 | 73768 | 9/7/1948 |
| Union Pacific | DS1207 | 673 | 73769 | 9/7/1948 |
| Union Pacific | DS1208 | 674 | 73770 | 9/11/1948 |
| Union Pacific | DS1209 | 675 | 73771 | 9/7/1948 |
| Union Pacific | DS1210 | 676 | 73772 | 9/11/1948 |
| Oakland Terminal | 101 | 677 | 73773 | 7/20/1948 |
| Reading | 700 | 678 | 73774 | 9/18/1948 |
| Reading | 701 | 679 | 73775 | 9/18/1948 |
| Reading | 702 | 680 | 73776 | 9/22/1948 |
| Reading | 703 | 681 | 73777 | 9/23/1948 |
| Reading | 704 | 682 | 73778 | 9/22/1948 |
| Reading | 705 | 683 | 73779 | 9/22/1948 |
| Reading | 706 | 684 | 73780 | 9/23/1948 |
| Reading | 707 | 685 | 73781 | 9/24/1948 |
| Reading | 708 | 686 | 73782 | 9/24/1948 |
| Reading | 709 | 687 | 73783 | 9/28/1948 |
| Reading | 710 | 688 | 73784 | 9/28/1948 |
| Reading | 711 | 689 | 73785 | 10/2/1948 |
| Reading | 712 | 690 | 73786 | 10/6/1948 |
| Reading | 713 | 691 | 73787 | 10/8/1948 |
| Reading | 714 | 692 | 73788 | 10/8/1948 |
| Atchison, Topeka & Santa Fe | 2266 | 693 | 73789 | 9/25/1948 |
| Atchison, Topeka & Santa Fe | 2267 | 694 | 73790 | 9/26/1948 |
| Atchison, Topeka & Santa Fe | 2268 | 695 | 73791 | 9/24/1948 |
| Atchison, Topeka & Santa Fe | 2269 | 696 | 73792 | 9/25/1948 |
| Atchison, Topeka & Santa Fe | 2270 | 697 | 73793 | 10/5/1948 |
| Atchison, Topeka & Santa Fe | 2271 | 698 | 73794 | 10/5/1948 |
| Atchison, Topeka & Santa Fe | 2272 | 699 | 73795 | 10/19/1948 |
| Atchison, Topeka & Santa Fe | 2273 | 700 | 73796 | 10/22/1948 |
| Atchison, Topeka & Santa Fe | 2274 | 701 | 73797 | 10/19/1948 |
| Atchison, Topeka & Santa Fe | 2275 | 702 | 73798 | 10/19/1948 |
| Atchison, Topeka & Santa Fe | 2276 | 703 | 73799 | 10/24/1948 |
| Atchison, Topeka & Santa Fe | 2277 | 704 | 73800 | 10/21/1948 |
| Atchison, Topeka & Santa Fe | 2278 | 705 | 73801 | 10/21/1948 |
| Canadian Pacific | 7065 | 706 | 73802 | 3/4/1948 |
| Baltimore & Ohio | 438 | 707 | 73839 | 10/27/1948 |
| Baltimore & Ohio | 439 | 708 | 73840 | 10/28/1948 |
| Baltimore & Ohio | 440 | 709 | 73841 | 10/28/1948 |
| Baltimore & Ohio | 441 | 710 | 73842 | 11/4/1948 |
| Baltimore & Ohio | 442 | 711 | 73843 | 11/5/1948 |
| Baltimore & Ohio | 443 | 712 | 73844 | 11/3/1948 |
| Baltimore & Ohio | 444 | 713 | 73845 | 11/3/1948 |
| Baltimore & Ohio | 445 | 714 | 73846 | 11/4/1948 |
| Baltimore & Ohio | 446 | 715 | 73847 | 11/12/1948 |
| Baltimore & Ohio | 447 | 716 | 73848 | 11/10/1948 |
| Baltimore & Ohio | 448 | 717 | 73849 | 11/13/1948 |
| Baltimore & Ohio | 449 | 718 | 73850 | 11/12/1948 |
| Baltimore & Ohio | 450 | 719 | 73851 | 11/12/1948 |
| Baltimore & Ohio | 451 | 720 | 73852 | 11/14/1948 |
| Baltimore & Ohio | 452 | 721 | 73853 | 11/13/1948 |
| Baltimore & Ohio | 453 | 722 | 73854 | 11/13/1948 |
| Baltimore & Ohio | 454 | 723 | 73855 | 11/12/1948 |
| Baltimore & Ohio | 455 | 724 | 73856 | 11/14/1948 |
| Baltimore & Ohio | 456 | 725 | 73857 | 11/15/1948 |
| Baltimore & Ohio | 457 | 726 | 73858 | 11/17/1948 |
| Baltimore & Ohio | 458 | 727 | 73859 | 11/16/1948 |
| Baltimore & Ohio | 459 | 728 | 73860 | 12/20/1948 |
| Baltimore & Ohio | 460 | 729 | 73861 | 12/24/1948 |
| Baltimore & Ohio | 461 | 730 | 73862 | 12/23/1948 |
| Baltimore & Ohio | 462 | 731 | 73863 | 12/25/1948 |
| Pennsylvania | 9251 | 732 | 73864 | 12/20/1948 |
| Pennsylvania | 9252 | 733 | 73865 | 12/22/1948 |
| Pennsylvania | 9253 | 734 | 73866 | 1/4/1949 |
| Pennsylvania | 9254 | 735 | 73867 | 12/30/1948 |
| Pennsylvania | 9255 | 736 | 73868 | 1/4/1949 |
| Pennsylvania | 9256 | 737 | 73869 | 1/6/1949 |
| Pennsylvania | 9257 | 738 | 73870 | 1/7/1949 |
| Pennsylvania | 9258 | 739 | 73871 | 1/10/1949 |
| Pennsylvania | 9259 | 740 | 73872 | 1/3/1949 |
| Pennsylvania | 9260 | 741 | 73873 | 1/3/1949 |
| Pennsylvania | 9261 | 742 | 73874 | 1/5/1949 |
| Pennsylvania | 9262 | 743 | 73875 | 1/6/1949 |
| Pennsylvania | 9263 | 744 | 73876 | 1/11/1949 |
| Pennsylvania | 9264 | 745 | 73877 | 1/9/1949 |
| Pennsylvania | 9265 | 746 | 73878 | 1/12/1949 |
| Pennsylvania | 9266 | 747 | 73879 | 1/19/1949 |
| Pennsylvania | 9267 | 748 | 73880 | 1/11/1949 |
| Pennsylvania | 9268 | 749 | 73881 | 2/17/1949 |
| Pennsylvania | 9269 | 750 | 73882 | 2/2/1949 |
| Pennsylvania | 9270 | 751 | 73883 | 1/27/1949 |
| Pennsylvania | 9271 | 752 | 73884 | 2/25/1949 |
| Pennsylvania | 9272 | 753 | 73885 | 2/2/1949 |
| Pennsylvania | 9273 | 754 | 73886 | 1/18/1949 |
| Pennsylvania | 9274 | 755 | 73887 | 2/4/1949 |
| Pennsylvania | 9275 | 756 | 73888 | 1/19/1949 |
| Chicago Great Western | 32 | 757 | 73914 | 2/6/1949 |
| Chicago Great Western | 33 | 758 | 73915 | 2/6/1949 |
| St. Louis-San Francisco (Frisco) | 238 | 759 | 73916 | 12/4/1948 |
| St. Louis-San Francisco (Frisco) | 239 | 760 | 73917 | 12/6/1948 |
| St. Louis-San Francisco (Frisco) | 240 | 761 | 73918 | 12/9/1948 |
| St. Louis-San Francisco (Frisco) | 241 | 762 | 73919 | 12/8/1948 |
| Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) | 1692 | 763 | 73920 | 11/7/1948 |
| Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) | 1693 | 764 | 73921 | 11/7/1948 |
| Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) | 1694 | 765 | 73922 | 11/6/1948 |
| Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) | 1695 | 766 | 73923 | 11/7/1948 |
| Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) | 1696 | 767 | 73924 | 11/27/1948 |
| Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) | 1697 | 768 | 73925 | 11/27/1948 |
| Kentucky & Indiana Terminal | 53 | 769 | 73926 | 10/2/1948 |
| Kentucky & Indiana Terminal | 54 | 770 | 73927 | 9/30/1948 |
| Southern Railway | 2285 | 771 | 73928 | 11/23/1948 |
| Southern Railway | 2286 | 772 | 73929 | 11/23/1948 |
| Southern Railway | 2287 | 773 | 73930 | 11/22/1948 |
| Southern Railway | 2288 | 774 | 73931 | 11/24/1948 |
| Southern Railway | 2289 | 775 | 73932 | 11/25/1948 |
| Southern Pacific | 1393 | 776 | 73933 | 9/3/1948 |
| Southern Pacific | 1394 | 777 | 73934 | 9/22/1948 |
| Southern Pacific | 1395 | 778 | 73935 | 9/12/1948 |
| Southern Pacific | 1396 | 779 | 73936 | 9/12/1948 |
| Southern Pacific | 1397 | 780 | 73937 | 9/11/1948 |
| Southern Pacific | 1398 | 781 | 73938 | 9/18/1948 |
| Southern Pacific | 1399 | 782 | 73939 | 9/17/1948 |
| Southern Pacific | 1400 | 783 | 73940 | 9/18/1948 |
| Southern Pacific | 1401 | 784 | 73941 | 9/20/1948 |
| Southern Pacific | 1402 | 785 | 73942 | 9/27/1948 |
| Canadian Pacific | 7066 | 786 | 73943 | 10/19/1948 |
| Canadian Pacific | 7067 | 787 | 73944 | 10/19/1948 |
| Canadian Pacific | 7068 | 788 | 73945 | 10/18/1948 |
| Canadian Pacific | 7069 | 789 | 73946 | 10/18/1948 |
| Canadian Pacific | 7070 | 790 | 73947 | 11/15/1948 |
| Canadian Pacific | 7071 | 791 | 73948 | 11/5/1948 |
| Canadian Pacific | 7072 | 792 | 73949 | 11/6/1948 |
| Canadian Pacific | 7073 | 793 | 73950 | 10/28/1948 |
| Canadian Pacific | 7074 | 794 | 73951 | 11/5/1948 |
| Canadian Pacific | 7075 | 795 | 73952 | 11/5/1948 |
| Ironton Railroad | 750 | 796 | 73953 | 10/23/1948 |
| American Smelting & Refining Company | 101 | 797 | 73954 | 9/15/1948 |
| Wabash | 304 | 798 | 73955 | 1/16/1949 |
| Calumet & Hecla Mining Company | 201 | 799 | 73956 | 8/19/1948 |
| Calumet & Hecla Mining Company | 202 | 800 | 73957 | 8/17/1948 |
| Bessemer & Lake Erie | 282 | 801 | 73958 | 3/25/1949 |
| Erie Railroad | 607 | 802 | 73959 | 3/1/1949 |
| Erie Railroad | 608 | 803 | 73960 | 3/5/1949 |
| Terminal Railroad Association Of St. Louis | 602 | 804 | 73961 | 3/19/1949 |
| Terminal Railroad Association Of St. Louis | 603 | 805 | 73962 | 3/10/1949 |
| Missouri Pacific | 9133 | 806 | 73963 | 3/14/1949 |
| Atchison, Topeka & Santa Fe | 2279 | 807 | 74073 | 3/16/1949 |
| Atchison, Topeka & Santa Fe | 2280 | 808 | 74074 | 3/18/1949 |
| Atchison, Topeka & Santa Fe | 2281 | 809 | 74075 | 3/31/1949 |
| Atchison, Topeka & Santa Fe | 2282 | 810 | 74076 | 3/31/1949 |
| Atchison, Topeka & Santa Fe | 2283 | 811 | 74077 | 3/21/1949 |
| Atchison, Topeka & Santa Fe | 2284 | 812 | 74078 | 3/23/1949 |
| Atchison, Topeka & Santa Fe | 2285 | 813 | 74079 | 3/22/1949 |
| Atchison, Topeka & Santa Fe | 2286 | 814 | 74080 | 3/25/1949 |
| Atchison, Topeka & Santa Fe | 2287 | 815 | 74081 | 3/29/1949 |
| Atchison, Topeka & Santa Fe | 2288 | 816 | 74082 | 3/29/1949 |
| Chicago & North Western | 1018 | 817 | 74083 | 3/14/1949 |
| Chicago & North Western | 1019 | 818 | 74084 | 3/8/1949 |
| Chicago & North Western | 1020 | 819 | 74085 | 3/9/1949 |
| Chicago & North Western | 1021 | 820 | 74086 | 3/14/1949 |
| Chicago & North Western | 1022 | 821 | 74087 | 4/16/1949 |
| Chicago, St. Paul, Minneapolis & Omaha (C&NW) | 99 | 822 | 74088 | 3/16/1949 |
| Chicago, St. Paul, Minneapolis & Omaha (C&NW) | 100 | 823 | 74089 | 3/17/1949 |
| Missouri Pacific | 9124 | 824 | 74090 | 3/21/1949 |
| Missouri Pacific | 9125 | 825 | 74091 | 4/11/1949 |
| Missouri Pacific | 9126 | 826 | 74092 | 3/21/1949 |
| Missouri Pacific | 9127 | 827 | 74093 | 4/11/1949 |
| St. Louis, Brownsville & Mexico (MP) | 9162 | 828 | 74094 | 3/30/1949 |
| St. Louis, Brownsville & Mexico (MP) | 9163 | 829 | 74095 | 3/30/1949 |
| St. Louis, Brownsville & Mexico (MP) | 9164 | 830 | 74096 | 3/28/1949 |
| St. Louis, Brownsville & Mexico (MP) | 9165 | 831 | 74097 | 3/26/1949 |
| St. Louis, Brownsville & Mexico (MP) | 9166 | 832 | 74098 | 4/9/1949 |
| St. Louis, Brownsville & Mexico (MP) | 9167 | 833 | 74099 | 4/22/1949 |
| Pennsylvania | 9050 | 834 | 74100 | 3/3/1949 |
| Pennsylvania | 9051 | 835 | 74101 | 3/11/1949 |
| Pennsylvania | 9052 | 836 | 74102 | 3/3/1949 |
| Pennsylvania | 9053 | 837 | 74103 | 3/31/1949 |
| Pennsylvania | 9054 | 838 | 74104 | 3/30/1949 |
| Pennsylvania | 9055 | 839 | 74105 | 3/30/1949 |
| Pennsylvania | 9056 | 840 | 74106 | 4/5/1949 |
| Pennsylvania | 9057 | 841 | 74107 | 3/31/1949 |
| Pennsylvania | 9058 | 842 | 74108 | 3/30/1949 |
| Pennsylvania | 9059 | 843 | 74109 | 3/30/1949 |
| Pennsylvania | 9060 | 844 | 74110 | 4/5/1949 |
| Pennsylvania | 9061 | 845 | 74111 | 4/5/1949 |
| Pennsylvania | 9062 | 846 | 74112 | 4/6/1949 |
| Pennsylvania | 9063 | 847 | 74113 | 4/7/1949 |
| Pennsylvania | 9064 | 848 | 74114 | 4/7/1949 |
| Pennsylvania | 9065 | 849 | 74115 | 4/1/1949 |
| Pennsylvania | 9066 | 850 | 74116 | 4/2/1949 |
| Pennsylvania | 9067 | 851 | 74117 | 4/6/1949 |
| Pennsylvania | 9068 | 852 | 74118 | 4/13/1949 |
| Pennsylvania | 9069 | 853 | 74119 | 4/20/1949 |
| Pennsylvania | 9070 | 854 | 74120 | 4/14/1949 |
| Pennsylvania | 9071 | 855 | 74121 | 4/21/1949 |
| Pennsylvania | 9072 | 856 | 74122 | 4/17/1949 |
| Pennsylvania | 9073 | 857 | 74179 | 4/22/1949 |
| Pennsylvania | 9074 | 858 | 74180 | 4/22/1949 |
| Pennsylvania | 9075 | 859 | 74181 | 4/22/1949 |
| Pennsylvania | 9076 | 860 | 74182 | 4/24/1949 |
| Pennsylvania | 9077 | 861 | 74183 | 4/25/1949 |
| Pennsylvania | 9078 | 862 | 74184 | 5/7/1949 |
| Pennsylvania | 9079 | 863 | 74185 | 4/27/1949 |
| Minneapolis, St. Paul & Sault Ste. Marie (Soo Line) | 311 | 864 | 74186 | 6/22/1949 |
| Minneapolis, St. Paul & Sault Ste. Marie (Soo Line) | 312 | 865 | 74187 | 6/21/1949 |
| Oliver Iron Mining Company | 928 | 866 | 74188 | 6/29/1949 |
| Oliver Iron Mining Company | 929 | 867 | 74189 | 6/6/1949 |
| Oliver Iron Mining Company | 930 | 868 | 74190 | 6/6/1949 |
| Oliver Iron Mining Company | 931 | 869 | 74191 | 7/8/1949 |
| Oliver Iron Mining Company | 932 | 870 | 74192 | 7/12/1949 |
| U.S. Army Corps Of Engineers | W8380 | 871 | 74193 | 8/9/1949 |
| Central Of Georgia | 36 | 872 | 74194 | 8/6/1949 |
| Pennsylvania | 5585 | 873 | 74197 | 2/7/1950 |
| Erie Railroad | 616 | 874 | 74196 | 9/12/1949 |
| Central Of Georgia | 37 | 875 | 74195 | 10/24/1949 |
| Pennsylvania | 5566 | 876 | 74198 | 1/6/1950 |
| Pennsylvania | 5567 | 877 | 74199 | 1/5/1950 |
| Pennsylvania | 5568 | 878 | 74200 | 1/11/1950 |
| Pennsylvania | 5569 | 879 | 74201 | 1/11/1950 |
| Pennsylvania | 5570 | 880 | 74202 | 1/11/1950 |
| Erie Railroad | 609 | 881 | 74203 | 6/20/1949 |
| Erie Railroad | 610 | 882 | 74204 | 6/2/1949 |
| Georgia Railroad | 921 | 883 | 74205 | 6/2/1949 |
| Atchison, Topeka & Santa Fe | 2289 | 884 | 74206 | 6/1/1949 |
| Atchison, Topeka & Santa Fe | 2290 | 885 | 74207 | 6/1/1949 |
| Atchison, Topeka & Santa Fe | 2291 | 886 | 74208 | 6/8/1949 |
| Atchison, Topeka & Santa Fe | 2292 | 887 | 74209 | 6/8/1949 |
| Atchison, Topeka & Santa Fe | 2293 | 888 | 74210 | 6/6/1949 |
| Atchison, Topeka & Santa Fe | 2294 | 889 | 74211 | 6/9/1949 |
| Atchison, Topeka & Santa Fe | 2295 | 890 | 74212 | 6/7/1949 |
| Atchison, Topeka & Santa Fe | 2296 | 891 | 74213 | 6/7/1949 |
| Atchison, Topeka & Santa Fe | 2297 | 892 | 74214 | 6/15/1949 |
| Atchison, Topeka & Santa Fe | 2298 | 893 | 74222 | 6/16/1949 |
| Atchison, Topeka & Santa Fe | 2299 | 894 | 74224 | 6/16/1949 |
| Atchison, Topeka & Santa Fe | 2200 (2nd) | 895 | 74223 | 6/17/1949 |
| Chicago Great Western | 34 | 896 | 74225 | 7/9/1949 |
| Chicago Great Western | 35 | 897 | 74226 | 7/16/1949 |
| Chicago Great Western | 36 | 898 | 74227 | 7/9/1949 |
| Chicago Great Western | 37 | 899 | 74228 | 7/7/1949 |
| Chicago Great Western | 38 | 900 | 74229 | 7/7/1949 |
| Chicago Great Western | 39 | 901 | 74230 | 7/5/1949 |
| Chicago Great Western | 40 | 902 | 74231 | 7/5/1949 |
| Chicago Great Western | 41 | 903 | 74232 | 7/6/1949 |
| Western Railway Of Alabama | 630 | 904 | 74233 | 11/1/1949 |
| Lehigh Valley | 140 | 905 | 74234 | 6/28/1949 |
| Lehigh Valley | 141 | 906 | 74235 | 6/28/1949 |
| Atlanta & West Point | 676 | 907 | 74596 | 4/22/1949 |
| Atlanta & West Point | 677 | 908 | 74597 | 4/23/1949 |
| Lehigh Valley | 142 | 909 | 74598 | 6/28/1949 |
| Lehigh Valley | 143 | 910 | 74599 | 6/29/1949 |
| Ironton Railroad | 751 | 911 | 74600 | 7/7/1949 |
| Reading | 715 | 912 | 74601 | 7/15/1949 |
| Reading | 716 | 913 | 74602 | 7/15/1949 |
| Reading | 717 | 914 | 74603 | 7/17/1949 |
| Reading | 718 | 915 | 74604 | 7/17/1949 |
| Reading | 719 | 916 | 74605 | 7/18/1949 |
| Reading | 720 | 917 | 74606 | 7/18/1949 |
| Reading | 721 | 918 | 74607 | 9/7/1949 |
| Reading | 722 | 919 | 74608 | 9/7/1949 |
| Reading | 723 | 920 | 74609 | 9/7/1949 |
| Reading | 724 | 921 | 74610 | 9/8/1949 |
| Reading | 725 | 922 | 74611 | 9/8/1949 |
| Reading | 726 | 923 | 74612 | 7/9/1949 |
| Reading | 727 | 924 | 74613 | 7/9/1949 |
| Reading | 728 | 925 | 74614 | 7/14/1949 |
| Reading | 729 | 926 | 74615 | 7/13/1949 |
| Erie Railroad | 611 | 927 | 74616 | 8/1/1949 |
| Erie Railroad | 612 | 928 | 74617 | 7/25/1949 |
| Erie Railroad | 613 | 929 | 74618 | 7/25/1949 |
| Erie Railroad | 614 | 930 | 74619 | 7/26/1949 |
| Erie Railroad | 615 | 931 | 74620 | 8/2/1949 |
| Pennsylvania | 5571 | 932 | 74621 | 1/10/1950 |
| Pennsylvania | 5572 | 933 | 74622 | 1/16/1950 |
| Pennsylvania | 5573 | 934 | 74623 | 1/17/1950 |
| Pennsylvania | 5574 | 935 | 74624 | 1/13/1950 |
| Pennsylvania | 5575 | 936 | 74625 | 1/13/1950 |
| Pennsylvania | 5576 | 937 | 74626 | 1/17/1950 |
| Lehigh Valley | 144 | 938 | 74627 | 1/18/1950 |
| Lehigh Valley | 145 | 939 | 74628 | 1/18/1950 |
| Lehigh Valley | 146 | 940 | 74629 | 1/19/1950 |
| Lehigh Valley | 147 | 941 | 74630 | 1/19/1950 |
| Lehigh Valley | 148 | 942 | 74631 | 2/24/1950 |
| Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) | 1901 | 943 | 74632 | 10/31/1949 |
| Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) | 1902 | 944 | 74633 | 10/31/1949 |
| Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) | 1903 | 945 | 74634 | 10/31/1949 |
| Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) | 1904 | 946 | 74635 | 10/31/1949 |
| Pennsylvania | 5577 | 947 | 74636 | 1/17/1950 |
| American Smelting & Refining Company | 102 | 948 | 74637 | 2/27/1950 |
| Pennsylvania | 5551 | 949 | 74638 | 2/1/1950 |
| Pennsylvania | 5552 | 950 | 74639 | 2/6/1950 |
| Baldwin Locomotive Works | 100DF | 951 | 74640 | 12/23/1949 |
| Pennsylvania | 5553 | 952 | 74641 | 2/2/1950 |
| Pennsylvania | 5554 | 953 | 74642 | 2/3/1950 |
| Pennsylvania | 5555 | 954 | 74643 | 2/1/1950 |
| Pennsylvania | 5556 | 955 | 74644 | 2/1/1950 |
| Pennsylvania | 5557 | 956 | 74645 | 2/1/1950 |
| Patapsco & Back Rivers | 342 | 957 | 74648 | 12/23/1949 |
| Patapsco & Back Rivers | 343 | 958 | 74649 | 12/27/1949 |
| Patapsco & Back Rivers | 344 | 959 | 74650 | 12/29/1949 |
| Pennsylvania | 5558 | 960 | 74651 | 2/17/1950 |
| Pennsylvania | 5559 | 961 | 74652 | 2/17/1950 |
| Pennsylvania | 5560 | 962 | 74653 | 2/21/1950 |
| Pennsylvania | 5561 | 963 | 74654 | 2/23/1950 |
| Pennsylvania | 5562 | 964 | 74655 | 2/23/1950 |
| Pennsylvania | 5563 | 965 | 74656 | 2/28/1950 |
| Pennsylvania | 5564 | 966 | 74657 | 2/28/1950 |
| Pennsylvania | 5565 | 967 | 74658 | 3/1/1950 |
| Pennsylvania | 5578 | 968 | 74659 | 4/6/1950 |
| Pennsylvania | 5579 | 969 | 74660 | 4/7/1950 |
| Pennsylvania | 5580 | 970 | 74661 | 4/7/1950 |
| Pennsylvania | 5581 | 971 | 74662 | 4/13/1950 |
| Pennsylvania | 5582 | 972 | 74663 | 4/14/1950 |
| Pennsylvania | 5583 | 973 | 74664 | 4/18/1950 |
| Pennsylvania | 5584 | 974 | 74665 | 4/19/1950 |
| Pennsylvania | 5586 | 975 | 74666 | 2/6/1950 |
| Pennsylvania | 5587 | 976 | 74704 | 2/8/1950 |
| Pennsylvania | 5588 | 977 | 74705 | 2/8/1950 |
| Pennsylvania | 5589 | 978 | 74706 | 2/9/1950 |
| Pennsylvania | 5590 | 979 | 74707 | 2/10/1950 |
| Pennsylvania | 9429 | 980 | 74708 | 5/15/1950 |
| Pennsylvania | 9430 | 981 | 74709 | 5/15/1950 |
| Pennsylvania | 9431 | 982 | 74710 | 5/18/1950 |
| Pennsylvania | 9432 | 983 | 74711 | 5/18/1950 |
| Pennsylvania | 9433 | 984 | 74712 | 5/25/1950 |
| Pennsylvania | 9434 | 985 | 74713 | 5/25/1950 |
| Pennsylvania | 5550 | 986 | 74759 | 3/2/1950 |
| Seaboard Air Line | 1435 | 987 | 74760 | 2/15/1950 |
| Seaboard Air Line | 1436 | 988 | 74761 | 2/15/1950 |
| Seaboard Air Line | 1437 | 989 | 74762 | 2/15/1950 |
| St. Louis, Brownsville & Mexico (MP) | 9148 | 990 | - | 3/24/1950 |
| St. Louis, Brownsville & Mexico (MP) | 9149 | 991 | - | 3/24/1950 |
| Missouri Pacific | 9133 | 992 | 74765 | 3/24/1950 |
| Missouri Pacific | 9134 | 993 | 74766 | 3/24/1950 |
| Missouri Pacific | 9135 | 994 | 74767 | 3/24/1950 |
| Missouri Pacific | 9136 | 995 | 74768 | 3/24/1950 |
| Missouri Pacific | 9137 | 996 | 74769 | 3/24/1950 |
| Missouri Pacific | 9138 | 997 | 74770 | 3/28/1950 |
| Missouri Pacific | 9139 | 998 | 74771 | 4/3/1950 |
| Missouri Pacific | 9140 | 999 | 74772 | 4/11/1950 |
| Missouri Pacific | 9141 | 1000 | 74773 | 4/13/1950 |
| Central Railroad Of New Jersey | 1072 | 1001 | 74774 | 4/28/1950 |
| Central Railroad Of New Jersey | 1073 | 1002 | 74775 | 4/28/1950 |
| Central Railroad Of New Jersey | 1074 | 1003 | 74776 | 4/28/1950 |
| U.S. Army Corps Of Engineers | L-4 | 1004 | - | 5/11/1950 |
| Baltimore & Ohio | 376 | 1005 | 74778 | 7/14/1950 |
| Baltimore & Ohio | 377 | 1006 | 74788 | 7/14/1950 |
| Baltimore & Ohio | 378 | 1007 | 74789 | 7/14/1950 |
| Baltimore & Ohio | 379 | 1008 | 74790 | 7/14/1950 |
| Baltimore & Ohio | 380 | 1009 | 74791 | 7/14/1950 |
| Baltimore & Ohio | 381 | 1010 | 74792 | 7/14/1950 |
| Seaboard Air Line | 1438 | 1011 | 74793 | 8/3/1950 |
| Seaboard Air Line | 1439 | 1012 | 74794 | 8/3/1950 |
| Seaboard Air Line | 1440 | 1013 | 74795 | 8/4/1950 |
| Seaboard Air Line | 1441 | 1014 | 74796 | 8/4/1950 |
| Seaboard Air Line | 1442 | 1015 | 74797 | 8/7/1950 |
| Seaboard Air Line | 1443 | 1016 | 74798 | 8/9/1950 |
| Baltimore & Ohio | 382 | 1017 | 74799 | 8/23/1950 |
| Baltimore & Ohio | 383 | 1018 | 74800 | 8/23/1950 |
| Baltimore & Ohio | 384 | 1019 | 74881 | 8/25/1950 |
| Baltimore & Ohio | 385 | 1020 | 74882 | 8/25/1950 |
| Seaboard Air Line | 1444 | 1021 | 74883 | 8/8/1950 |
| Seaboard Air Line | 1445 | 1022 | 74884 | 8/9/1950 |
| Seaboard Air Line | 1446 | 1023 | 74885 | 8/10/1950 |
| Seaboard Air Line | 1447 | 1024 | 74886 | 8/11/1950 |
| Seaboard Air Line | 1448 | 1025 | 74887 | 8/16/1950 |
| Seaboard Air Line | 1449 | 1026 | 74888 | 8/17/1950 |
| Seaboard Air Line | 1450 | 1027 | 74889 | 8/18/1950 |
| Seaboard Air Line | 1451 | 1028 | 74890 | 8/21/1950 |
| Baltimore & Ohio | 386 | 1029 | 74937 | 8/28/1950 |
| Baltimore & Ohio | 387 | 1030 | 74938 | 8/28/1950 |
| Baltimore & Ohio | 388 | 1031 | 74939 | 8/30/1950 |
| Baltimore & Ohio | 389 | 1032 | 74940 | 8/30/1950 |
| Baltimore & Ohio | 390 | 1033 | 74941 | 8/31/1950 |
| Baltimore & Ohio | 391 | 1034 | 74942 | 8/31/1950 |
| Baltimore & Ohio | 392 | 1035 | 74943 | 9/22/1950 |
| Baltimore & Ohio | 393 | 1036 | 74944 | 9/22/1950 |
| Baltimore & Ohio | 394 | 1037 | 74945 | 10/5/1950 |
| Baltimore & Ohio | 395 | 1038 | 74946 | 10/5/1950 |
| Baltimore & Ohio | 396 | 1039 | 74947 | 10/6/1950 |
| Baltimore & Ohio | 397 | 1040 | 74948 | 10/6/1950 |
| Baltimore & Ohio | 398 | 1041 | 74949 | 10/13/1950 |
| Baltimore & Ohio | 399 | 1042 | 74950 | 10/13/1950 |
| Seaboard Air Line | 1452 | 1043 | 75098 | 10/30/1950 |
| Seaboard Air Line | 1453 | 1044 | 75099 | 10/31/1950 |
| Seaboard Air Line | 1454 | 1045 | 75100 | 10/31/1950 |
| Seaboard Air Line | 1455 | 1046 | 75101 | 11/1/1950 |
| Seaboard Air Line | 1456 | 1047 | 75102 | 11/10/1950 |
| Seaboard Air Line | 1457 | 1048 | 75103 | 12/8/1950 |
| Seaboard Air Line | 1458 | 1049 | 75104 | 12/12/1950 |
| Seaboard Air Line | 1459 | 1050 | 75105 | 1/11/1951 |
| Seaboard Air Line | 1460 | 1051 | 75106 | 1/18/1951 |
| Seaboard Air Line | 1461 | 1052 | 75107 | 1/19/1951 |
Specifications and production roster compiled primarily from Kirkland; narrative updated August 2026.
Oct 04, 26 12:17 AM
Oct 03, 26 12:07 AM
Oct 02, 26 11:53 PM
Oct 02, 26 11:48 PM
Oct 02, 26 11:28 PM
Oct 02, 26 11:18 PM
Oct 02, 26 11:06 PM
Oct 02, 26 11:04 PM
Oct 02, 26 10:36 PM
Oct 02, 26 01:14 PM
Oct 02, 26 10:11 AM
Oct 02, 26 09:56 AM
Oct 02, 26 09:52 AM
Oct 02, 26 09:32 AM
Oct 02, 26 08:41 AM
Oct 02, 26 08:35 AM
Oct 02, 26 12:28 AM
Oct 02, 26 12:14 AM
Oct 02, 26 12:03 AM
Oct 01, 26 11:52 PM
Oct 01, 26 11:38 PM
Oct 01, 26 02:52 PM
Oct 01, 26 02:45 PM
Oct 01, 26 02:27 PM
Oct 01, 26 01:02 PM
Oct 01, 26 12:59 PM
Oct 01, 26 12:22 PM
Oct 01, 26 12:19 PM
Oct 01, 26 12:11 PM
Oct 01, 26 12:00 PM
Oct 01, 26 11:28 AM
Oct 01, 26 12:15 AM
Sep 30, 26 11:37 PM
Sep 30, 26 11:29 PM
Sep 30, 26 08:10 PM
Sep 30, 26 03:45 PM
Sep 30, 26 03:37 PM
Sep 30, 26 03:30 PM
Sep 30, 26 11:12 AM
Sep 30, 26 11:06 AM
Sep 30, 26 10:42 AM
Sep 30, 26 09:45 AM
Sep 30, 26 09:41 AM
Sep 29, 26 11:58 PM
Sep 29, 26 11:43 PM
Sep 29, 26 06:18 PM
Sep 29, 26 02:42 PM
Sep 29, 26 02:37 PM
Sep 29, 26 11:26 AM
Sep 29, 26 11:08 AM