Note: Vol. AAR, AMT, Apache, Asplundh, ATRW, ATSF, BA&P, Bay Colony, BK, B&M, BN, BNSF, B&O, BB, CF&W, C&G, CCL, CS, CKIN, CMSL, CN, CNJ, CNW, C&O, CP, CR, CSX, CV, CW, CWP, DMIR, D&H, DL, DRGW, EJ&E, EL, ETL, EMC, FL, GM&O, GMRC, GR, GTW, IC, IHB, INRC, and IT.
