Going back to the prime rail travel years of the 1920’s, 30’s, 40’s (or earlier):
Was it ever possible to travel across the US (coast to coast) by a scheduled train without having to change (usually in Chicago if travelling to/from New England or NYC)?
How about further south? If I wanted to travel from Atlanta to LA, could I have done that without a change?
Were there trains out of southern Florida that would have headed west to a certain point without a change? Or would it have been necessary to change in (e.g.) Atlanta to head further west?