The classifications given by railroads to their steam locomotive fleets were as varied as the machines themselves with several different designations within a particular class! Akron, Canton and Youngstown steam locomotives were likewise distinguished by a wide range of classes from C to R. In any event, the information here is most certainly not a complete, all-time listing of the AC&Y's steam fleet and also is merely meant to list the general types of steam locomotives operated by the railroad.
The Akron, Canton and Youngstown Railroad, Ohio’s Road of Service, operated between 1907 and 1982 and was created through the merger of the Akron, Canton & Youngstown Railway and Youngstown Railroad before being acquired by the Norfolk & Western Railway. The AC&Y only operated a small fleet of steam locomotives, rostering types no larger than 2-8-2 Mikados. Because of this, unfortunately today no Akron, Canton & Youngstown steam locomotives are known to survive, preserved.
Class C
The AC&Y's Class C included its roster of 0-6-0 switchers.
Class E
The AC&Y's Class E included its roster of 2-6-0 Moguls.
Class L
The AC&Y's Class L included its roster of 0-8-0 switchers.
Class M, Class O
The AC&Y's Class M and Class O included its roster of 2-8-0 Consolidations.
Class P
The AC&Y's Class P included its roster of 4-6-0 Ten-Wheelers.
Class R
The AC&Y's Class R included its largest fleet of steam locomotives, 2-8-2 Mikados.
Lastly, for more information on steam locomotives like those operated by the Akron, Canton and Youngstown Railroad consider Guide to North American Steam Locomotives by author George Drury, which includes nearly 500 pages of information on virtually all of the steam locomotive wheel arrangements and designs (including streamlined steamers) ever developed. The book is a great resource on steam locomotives and a fine reference tool; you should find it very useful.
Also, consider the book American Steam Locomotives from author Brian Solomon. While this publication does not include quite as much technical data as Guide to North American Steam Locomotives it is still a very good resource with lots of information and best of all, is loaded with photographs! If you're interested in perhaps purchasing these books please visit The Railroad Diamond by clicking the tab in the menu to your left marked "TRD Store".