Just some info about a small railroad. Where my dad was a conductor on this railroad.
http://en.wikipedia.org/wiki/Detroit_and_Mackinac_Railway
Detroit and Mackinac Railway Historical Society
http://www.michiganrailroads.com/dmhs/home.htm
D&M Engine and rail car photo album.
http://www.railroadmichigan.com/detroitmackinac.html
Good stuff, hard to imagine those engines are inline 6's. Coffee Can cylinders.....or even bigger!