Chessie System, Inc. was a holding company that owned the Chesapeake and Ohio Railway (C&O), the Baltimore and Ohio Railroad (B&O), the Western Maryland Railway (WM), and Baltimore and Ohio Chicago Terminal Railroad (B&OCT). Trains operated under the Chessie name from 1973 to 1987. Headquartered in Cleveland, Ohio, the Chessie System was the creation of Cyrus S. Eaton and his protégé Hays T. Watkins, then president and chief executive officer of the C&O. A chief source of revenue for the Chessie System was coal mined in West Virginia. Another was the transport of auto parts and finished motor vehicles. The name "Chessie System" had been a popular nickname for the C&O since the 1930s, cemented with an advertising campaign that featured a sleeping kitten named Chessie. The 1970s holding company developed the "Ches-C" emblem: a kitten outline imposed on a circle, creating a rough letter C. This emblem was emblazoned on the front of all Chessie System locomotives, and also served as the "C" in "Chessie System" on the locomotive's flanks, and on other rolling stock. History The three railroads that would make up the Chessie System had been closely related since the 1960s. C&O had acquired controlling interest in B&O in 1962, and the two had jointly controlled WM since 1967. Chessie System was incorporated in Virginia on February 26, 1973, and it acquired the railroads on June 15. On November 1, 1980, Chessie System merged with Seaboard Coast Line Industries to form CSX Corporation. Initially, the three Chessie System railroads continued to operate separately, even after Seaboard's six Family Lines System railroads were merged into the Seaboard System Railroad on December 29, 1982. That began to change in 1983, when the WM was merged into the B&O. The Chessie image continued to be applied to new and re-painted equipment until July 1, 1986, when CSXT introduced its own paint scheme. In April 1987, the B&O was merged into the C&O. In August 1987, C&O merged into CSX Transportation, a 1986 renaming of the Seaboard System Railroad, and the Chessie System name was retired. List of railroad subsidiaries Its subsidiaries included: Baltimore & Ohio Railroad Baltimore & Ohio Chicago Terminal Railroad Chesapeake & Ohio Railway Covington & Cincinnati Elevated Railroad & Transfer & Bridge Company Staten Island Railroad Toledo Ore RR Company Western Maryland Railway Notable locomotives The Chessie System company itself directly owned no locomotives or other rolling