Charles Swann Roberts (February 3, 1930 - August 20, 2010) was a wargame designer, railroad historian, and businessman.

These are useful to modelers in general, railroad historians, and are valuable references on the steam and diesel eras.

The PRR considered the Q1 design unfit for series production, and railroad historians consider it largely a failure.

Charles S. Roberts, 80, American game designer and railroad historian.

John Denney Jr., a railroad historian from Columbia, Pa., asked "Are there any real passengers here?"

"I love this train, but I want Amtrak too," said Karl Zimmermann, a railroad historian who was one of the lecturers on board.

These and other works earned Klein a reputation as one of America's prominent business and railroad historians.

Michael Kudish is an author, railroad historian, forester, and retired professor.

As a railroad historian, he wrote Where Did The Tracks Go?

This counterfactual history view was vastly different from views proffered by railroad historians and made a controversial name for cliometrics.