In 1956, with traffic declining, through service to Boston from Montreal was terminated, replaced with a transfer to Boston and Maine rail diesel cars at White River Junction, and the Ambassador name was applied to the Montreal—New York City train, which by 1958 lost food service and consisted only of coaches.[1]: 114 On September 3, 1966, the Ambassador was discontinued after its operators sought and received approval from the Interstate Commerce Commission to terminate service.[1]: 151
References
^ abcdeHolland, Kevin (2004). Passenger Trains of Northern New England in the Streamline Era. Lynchburg, VA: TLC Publishing. ISBN1-883089-69-7.
^'Official Guide of the Railways' August 1949, Boston and Maine section, Table 22
^'Official Guide of the Railways' August 1949, Central Vermont Railway section, Table 5