Modern Railroads  
  Central Indiana Railroad
https://www.gwrr.com/railroads/north_america/central_railroad_of_indiana#m_tab-one-panel
   
  Chicago, Ft. Wayne, & Eastern RR
https://www.gwrr.com/railroads/north_america/chicago_ft_wayne_eastern_railroad#m_tab-one-panel
   
  Chicago, South Shore & South Bend RR
http://www.anacostia.com/railroads/css
   
  CSX
http://www.csx.com/
   
  Indiana and Ohio RR
https://www.gwrr.com/railroads/north_america/indiana__ohio_railway#m_tab-one-panel
   
  Indiana Railroad
http://www.inrd.com/
   
  Indiana Southern Railway
https://www.gwrr.com/railroads/north_america/indiana-southern-railroad#m_tab-one-panel
   
  Louisville & Indiana Railway
http://www.anacostia.com/railroads/lirc
   
  Madison Railroad
http://www.madisonrailroad.com/
   
  Norfolk Southern
http://www.nscorp.com/
   
  Toledo, Peoria & Western RWY
https://www.gwrr.com/railroads/north_america/toledo_peoria__western_railway#m_tab-one-panel