Canadian National 2 Canadian Pacific 3 Chesapeake and Ohio 4 Chicago & Eastern Illinois 2 Chicago and North Western 6 Chicago Burlington & Quincy 2 Conrail 4 CSX 10 Denver and Rio Grande Western 1 Duluth South Shore & Atlantic 1 Erie 1 Florida Central 2 Grand Trunk Western 2 Great Northern 2 Gulf, Mobile and Ohio 1 Illiinois Central Gulf 3 Lake Superior & Ishpeming 3 Maine Central 2 Milwaukee Road 2 Missouri Pacific 2 Missouri, Kansas, Texas 3 Morristown & Errie 2 New Jersey Transit 2 Norfolk Southern 3 Pere Marquette 2 Rail Box 2 Seaboard Air Line 1 Soo Line 9 Southern Pacific 3 Union Carbide 4 Union Pacific 6 Wheeling & Lake Erie 1