Ambassador (B&O train) Ambassador (B&O train) The Ambassador was a named train of the Baltimore and Ohio Railroad (B&O) on its route between Baltimore, Maryland and Detroit, Michigan with major station stops in Washington, D.C. and Pittsburgh, Pennsylvania and Toledo, Ohio. Inaugurated in 1930, the "Ambassador" was discontinued in 1964. The B&O began passenger service from Detroit to Washington, D.C. in 1920. Until 1925, the B&O offered a through Washington - Detroit Pullman sleeping car running on a Washington-Chicago train to Deshler, Ohio then added to a Cincinnati - Detroit train. In June 1925, the B&O started a through overnight Washington - Detroit
Reading Company the Central Railroad of New Jersey, allowing the Reading to offer seamless, one-seat rides from Reading Terminal in Philadelphia to the CNJ's Jersey City Communipaw Terminal by way of Bound Brook onto the CNJ mainline. The Baltimore and Ohio Railroad was also looking for access to the New York market, and in 1903 the B&O gained control over the Reading and thus ensured its trains track rights over the Reading and CNJ to Jersey City. To the north, the New York Short Line was completed in 1906, and was a cut-off for New York Bound through freights and the B&Os