The Legendary "Little Joes" (Class EF-4/EP-4)

Last revised: November 5, 2024

The Milwaukee Road’s "Little Joes," were the last electric locomotives purchased by the railroad. How they ended up on the Milwaukee Road is a rather twist of fate.

However, the electric locomotives ran near flawlessly during their service life that spanned three decades and they became the most revered motors ever operated on the Milwaukee Road.

The Little Joes were used in regular service from the early 1950s until the Milwaukee Road’s western electrified operations over its famous Pacific Extension were shutdown in 1974.

Early on the 2-D+D-2 electrics pulled both passenger and freight trains although this ended in early 1961 when the railroad stopped running its transcontinental Olympian Hiawatha to Puget Sound.

Thankfully, one Little Joe was saved from the scrapper’s torch and now sits on display in Deer Lodge, Montana with other preserved equipment.

Photos

This fantastic scene features a lineup of "Little Joes" at the yard in Deer Lodge, Montana in September, 1972. Closest to the photographer is E-76 and E-71. Photographer unknown. American-Rails.com collection.

History

The unique "Little Joe" electric locomotives were built by General Electric in 1946 to fill an order placed by the Soviet Railways to operate on a 3,300 volt, DC system.

However, upon the order being completed relations had broken down between the United States and Russia (thus plunging us into the Cold War) and the locomotives had no place to go, with all 20 sitting at GE’s Erie, Pennsylvania plant awaiting purchase.

The "Little Joes" derived their name from the Soviet Union’s ruler, Joseph Stalin originally being called Little Joe Stalin's locomotives and later shortened to just Little Joes.

Milwaukee Road "Little Joes" E-75 and E-74, along with a GP9, lead a westbound freight through rural Garrison, Montana in November of 1964. Tom Gildersleeve photo. American-Rails.com collection.

From a technical standpoint these motors carried a 2-D+D-2 wheel arrangement, were equipped with eight GE 750 motors, and operated on a 3,000 volt DC system (perfect for the Milwaukee Road) with a continuous rating of 5,500 horsepower!

While geared rather low with a maximum speed of just 68 mph they produced 75,700 pounds of tractive effort and would prove to be perfect in stiff, mountainous territory.

Needing to sell the electric locomotives, GE offered to test one on the Milwaukee Road in the late 1940s, which interestingly had to be re-gauged to 4 feet 8 ½ inches from the five foot specifications for Soviet Railways.

Specifications

Date Built	7/1948 - 2/1949
Road Numbers (Passenger)	E-20, E-21 (Class EP-4)
Road Numbers (Freight)	E-70 thru E-79 (Class EF-4)
Wheel Arrangement	2-D+D-2
Traction Motors	GE 750 (8)
Total Weight	586,600 Lbs
Weight on Drivers	443,000 Lbs
Driver Diameter	47 ¼ inches
Tractive Effort (Continuous)	77,000 Lbs
Tractive Effort (1-hour Rating)	85,500 Lbs
Tractive Effort (At 25% Adhesion)	110,750 Lbs
Horsepower (Continuous)	5,110
Horsepower (1-Hour Rating)	5,530
Top Speed (Maximum)	84 mph
Safe Speed	68 mph
Air Brake	8-EL
Total Length	88 Feet, 10 Inches
Total Wheelbase	77 Feet, 10 Inches
Rigid Wheelbase	20 Feet, 7 Inches
Height	14 Feet, 5 Inches
Width	10 Feet, 7 Inches
Gear Ratio	21:80
Electrical System	3,000 Volt/DC

Of the twenty built, the Milwaukee Road would go on to purchase 12 in 1950 with three picked up by the commuter line Chicago, South Shore & South Bend Railroad and the other five sold to Brazilian railroad, Paulista Railway. After arrival on the CMStP&P the railroad quickly set to putting them into service.

In his book, "The Milwaukee Electrics," author Noel Holley notes the Milwaukee Road had an incredible chance to acquire all 20 locomotives for merely their scrap value of $1 million, which included all of the spare parts GE had on hand. The deal was negotiated by the Milwaukee's legendary Laurence Wylie in 1949, who led the Electrification Department since 1948.

Milwaukee Road "Little Joes" E-76 and E-78 layover at the engine terminal in Deer Lodge, Montana on May 9, 1962. Note the BiPolar, E-5, in the background. American-Rails.com collection.

Unfortunately, Milwaukee's Operating Vice President, J.P. Kiley, a longtime advocated for diesel locomotives with little experience in electrification, overruled him. When the U.S. entered the Korean War in the summer of 1950, freight traffic spiked and the Milwaukee found itself in a power shortage, especially out west.

Kiley eventually capitulated and allowed Wylie to purchase the GE locomotives. However, by then only 12 remained and the asking price was $1 million for the group. In addition, no spare parts remained.

Initially two were singled out for passenger service and designated class EP-4 (they carried the Milwaukee Road’s plush Olympian Hiawatha passenger train, which operated between Seattle and Chicago).

The rest were geared for freight operations and designated class EF-4s (after the Milwaukee Road ended passenger service to Seattle in 1961 the two motors designated for such were reclassified to EF-4s as well).

Milwaukee Road "Little Joes" E-71 and E-74 were photographed here in service during the summer of 1972. George Fischer photo. American-Rails.com collection.

The "Little Joes" were purchased to replace the Milwaukee Road’s aging fleet of electrics which consisted of elderly GE boxcabs; classes EP-1, EF-1, and EP-2 (Bi-Polars). The Bi-Polars were scrapped in 1962 and the original EP-1s and boxcabs were slowly retired over the coming years.

The EF-4s proved to be a reliable and effective motor across the Milwaukee Road’s Rocky Mountain Division where grades through the Bitterroots sometimes peaked over 2%.

If you were lucky enough to see these magnificent locomotives in action they could regularly be seen assisting expedited freights with names like XL Special and Thunderhawk over St. Paul Pass and climbing Vendome Loop. The Joes' range stretched as far west as Avery, Idaho the western terminus of Milwaukee's Rocky Mountain Division.

A pair of Milwaukee Road "Little Joes," led by E-73, have a westbound freight in Montana, circa 1972. Location not recorded. American-Rails.com collection.

Until 1961 the "Little Joes" also assisted in carrying the regal Olympian Hiawatha passenger train from Harlowton, Montana to Avery, Idaho.

The two "Little Joes" designated for this service were painted in a splendid matching livery of two-tone orange and after the Milwaukee Road ended the Olympian Hi the units were returned to the more traditional solid orange with black trim.

Milwaukee Road "Little Joes" E-77 and E-20 lead eastbound time freight 264 over the Clark Fork River at St. Regis, Montana on May 23, 1974. In less than a month the electrification would be shutdown. American-Rails.com collection.

Final Years

For the "Little Joes", not only were they the last electrics purchased by the Milwaukee Road but the locomotives also made history by heading the final runs of electrified operations in June of 1974.

One of these last runs occurred on June 15th when electrics E73 and E20 lead train #264 into Deer Lodge, Montana.

E-70 Preservation

After the June shutdown the "Little Joes" remained in storage on the system until all were eventually scrapped, save for unit E70 which was donated to the City of Deer Lodge and today is displayed on the courthouse lawn painted in the Milwaukee's Olympian Hiawatha livery.

It is interesting to note that just after the Milwaukee Road shutdown its electrification the oil embargo hit causing oil prices to shoot through the roof and resulted in the railroad not only spending millions on fuel but also new locomotives to replace the electrics.

Roster

Road Number	Date Built	Builder	Class	Serial Number	Original Buyer/Road Number
E20*	10/1948	General Electric	Class EP-4	29922	Soviet Railways/A1601
E21*	10/1948	General Electric	Class EP-4	29921	Soviet Railways/A1600
E70	12/1948	General Electric	Class EF-4	29927	Soviet Railways/A1591
E71	1/1949	General Electric	Class EF-4	29928	Soviet Railways/A1592
E72	2/1949	General Electric	Class EF-4	29929	Soviet Railways/A1593
E73	2/1949	General Electric	Class EF-4	29930	Soviet Railways/A1594
E74	12/1948	General Electric	Class EF-4	29926	Soviet Railways/A1595
E75	7/1948	General Electric	Class EF-4	29916	Soviet Railways/A1596
E76	7/1948	General Electric	Class EF-4	29917	Soviet Railways/A1597
E77	7/1948	General Electric	Class EF-4	29918	Soviet Railways/A1598
E78	9/1948	General Electric	Class EF-4	29919	Soviet Railways/A1599
E79	9/1948	General Electric	Class EF-4	29920	Soviet Railways/A1602

* Equipped with steam generators for passenger service. In 1956 these were removed and the locomotives reclassified as EF-4s for freight service. Interestingly, the units always retained their original numbers.

Please note!: The Soviet Railways road numbers and GE serial numbers are correct to the best of my knowledge but data on each locomotive was limited so I cannot state with 100% certainly that they are accurate.

Milwaukee Road "Little Joe" E-72 and a mate layover near the roundhouse at Harlowton, Montana on May 7, 1958. American-Rails.com collection.

In any event, today electrics no longer conquer St. Paul Pass on the Rocky Mountain Division and all is quiet over the famous Pacific Extension except for the sound of Mother Nature and the occasional hiker along a number of rail/trails.

However, the sprinting Indian logo lives on with the Milwaukee Road Historical Association and Amtrak continues to operate a passenger train named after the famous Indian.

Photo Gallery

Milwaukee Road "Little Joes" E-71 and E-77, along with SD40-2s #3038, #3024, an #3026 leads a westbound freight over the Clark Fork River and Northern Pacific main line at St. Regis, Montana in September of 1972. American-Rails.com collection.

Milwaukee Road "Little Joes" and boxcabs have a steel gang train near Newcomb, Montana (just outside of Butte) during July of 1973. Bob Wilt photo. American-Rails.com collection.

Milwaukee Road "Little Joe" E-74 leads a westbound freight off Pipestone Pass near Janney, Montana as the train heads for Butte on October 21, 1973. William Eley photo. American-Rails.com collection.

Milwaukee Road "Little Joes" E-71 and E-70 have a westbound freight at the small yard in Rocker, Montana on May 9, 1962. Photographer unknown. American-Rails.com collection.

A pair of Milwaukee Road "Little Joes" head east across the Clark Fork River at St. Regis, Montana in September, 1972. Photographer unknown. American-Rails.com collection.

Milwaukee Road "Little Joe" E-72 leads a westbound freight near Butte, Montana on July 8, 1972. Photographer unknown. American-Rails.com collection.

Milwaukee Road "Little Joe" E-72 and SD45 #4006 have a westbound freight just west of Goldcreek, Montana in August, 1971. The Northern Pacific's main line can be seen in the background. Photographer unknown. American-Rails.com collection.