A&WP, ACL (founding road), Alton, B&O (founding road), C&EI, C&O, CB&Q (founding road BREX), CofGa, CS (BREX), FEC, FW&D (BREX), GN (founding road WFE), L&N, N&W, NC&StL, NS, NYNH&H, NYO&W, PM, PRR (founding road), RF&P, SAL, SOU (founding road), VGN, WofA.