| No. | Model | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|
| 244 | RS-1 | M&StL | Boone & Scenic Valley Railroad, Boone, IA | operational | Alco, 02/1944 | |
| 405 | RS-1 | GMRC (Rutland) | Green Mountain Railroad, Burlington, VT | operational | Alco, 11/1951 | |
| 101 | RS-1 | Duluth, South Shore & Atlantic | Lake Superior Railroad Museum, Duluth, MN | operational | Alco, 1945 | |
| 4 (103) | RS-1 | Algiers, Winslow & Western (Duluth, South Shore & Atlantic) | Indiana Railway Museum, French Lick, IN | operational | Alco, 01/1947 | |
| 745 | RS-1 | CRI&P | LASTA, Jefferson, LA | operational | Alco, 05/1943 | |
| 401 (756) | RS-1 | CMRR (Illinois Terminal) | Catskill Mountain Railroad, Kingston, NY | operational | Alco, 03/1950 | |
| 20 | RS-1 | Livonia Avon & Lakeville (Lake Erie, Franklin & Clarion) | Livonia Avon & Lakeville Railroad, Lakeville, NY | operational | Alco, 04/1949 | Owned by the Rochester & Genesse Valley Railroad Museum. |
| 106 | RS-1 | GCRM (E.I. Dupont) | Gold Coast Railroad Museum, Miami, FL | operational | Alco | |
| 39-5308 (105) | RS-1 | SARL (E.I. Dupont) | Southern Appalachia Railroad Museum, Oak Ridge, TN | operational | Alco, 06/1951 | |
| 275 (909) | RS-1 | CYDZ (Atlanta & St. Andrews Bay) | Conrad Yelvington, Ocala, FL | operational | Alco, 06/1944 | |
| 9 (260) | RS-1 | Eastman Kodak (Chicago & Western Indiana) | Rochester & Genesee Valley Railroad Museum, Rush, NY | operational | Alco, 02/1950 | |
| 50 | RS-1 | Central New England (Wachington Central) | yard, Scantic, CT | operational | Alco, 11/1947 | |
| 30 | RS-1 | Cape Cod Central (Genesse & Wyoming) | yard, Scantic, CT | operational | Alco, 05/1955 | |
| 0670 | RS-1 | NYNH&H | yard, Scantic, CT | operational | Alco, 11/1948 | |
| 20 (400) | RS-1 | A&M (Rutland) | Arkansas & Missouri Railroad, Springdale, AR | operational | Alco, 10/1951 |