| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|---|---|
| 786 | Mk-5 | 2-8-2 | 4'-8½" | SP (T&NO) | Austin & TX Central, Austin, TX | restoration | Alco (Brooks) #55972, 1916 | ASTA Restored to operation in December 1991. Previously operated in July 1999. Suffered a cracked cylinder saddle block. Being restored to operational condition. |
| 771 | Mk-5 | 2-8-2 | 4'-8½" | SP (T&NO) | Grapevine Vintage Railroad, Grapevine, TX | display | Baldwin #39726, 1913 | From Victoria, TX. |
| 745 | Mk-5 | 2-8-2 | 4'-8½" | SP (T&NO) | LASTA, Jefferson, LA | out of service | T&NO (Algiers), 1921 | Named Spirit of Lousiana. Featured in The Curious Case of Benjamin Button and Jonah Hex. Restored to operation in late 2004. Taken out of service in 2019. Undergoing mandated 1,472-day inspection and overhaul. Will move to the Garyville Timbermill Museum. |
| 794 | Mk-5 | 2-8-2 | 4'-8½" | SP (T&NO) | Sunset (SP/Amtrak) Depot, San Antonio, TX | display | Alco (Brooks) #55980, 09/1916 | Planned for a possible restoration to operating condition. |