Factual error: In the scene where Colonel Jackson meets his wife at the train station, the locomotive tender is labeled V&TRR and the coach is the familiar yellow-brown of the Virginia and Truckee Railroad. The V&T was a Nevada shortline connected to the Comstock gold strike that actually financed a huge amount of the Union expenses for fighting the war.
Suggested correction: The V&TRR in this case refers to the Virginia and Tennessee Railroad, which served as an important supply line for the Confederacy, linking Richmond, Virginia with Chattanooga, Tennessee. Established 1852, the road was acquired by the Atlantic, Mississippi and Ohio Railroad in 1870 (coincidentally, the same year that the Virginia and Truckee was established). The yellow-brown livery was common for passenger equipment during the Civil War era, used by most roads nationwide.
