Canadian National 0 Chesapeake and Ohio 0 Chessie System 0 Chicago & Eastern Illinois 0 Chicago and Illinois Midland 0 Chicago and North Western 0 Chicago Burlington & Quincy 0 Conrail 0 Cotton Belt 0 CSX 0 Denver and Rio Grande Western 0 Detroit, Toledo and Ironton 6 Erie 0 Family Lines System 0 Florida East Coast 0 Frisco 0 GATX 0 Great Northern 0 Illiinois Central Gulf 0 Illinois Central 0 Iowa Interstate 0 Kansas City Southern 0 Louisville and Nashville 0 Milwaukee Road 0 Missouri Pacific 0 Missouri, Kansas, Texas 0 Norfolk and Western 8 Norfolk Southern 22 Penn Central 0 Reading & Northern 0 Richmond, Fredricksburg and Potomac 6 Rock Island 6 Santa Fe 0 Soo Line 0 Southern 0 Southern Pacific 0 TTX 17 Union Pacific 1 Wabash 0 Wheeling & Lake Erie 0