MDM Locomotive Works
- Wandering Locomotive Book: Jim Murray and MDM Locomotive Works (PDF)
- MDM Locomotive 2006 Catalog (PDF)
- MDM Locomotive Price List January 2013 (PDF)
Lee Wright designed the original patterns used by MDM Locomotive Works for building the HTC Trucks. The trucks featured a wheelbase of 20 3/8 inches, wheel diameter 5 inch and axles of 5/8 inch diameter with ball bearing journals.
F7A built by Tom Bee. The body was provided by MDM Locomotive Works as a kit. The trucks are Tom Bee.
Brake Shoe Ring, cast aluminum, by MDM Locomotive Works.