Main routes generally still existed in 1976.
Citizens Auto Stage Co. - operated 1916-1998
Original route: Tucson-Nogales
Mogollon Stage Lines - operated 1965-1980
Original route: Phoenix-Payson
Sun Valley Bus Lines - operated 1947-1987 (to Greyhound)
Original route: Phoenix-Las Vegas NV
(acquired from Las Vegas-Needles-Phoenix Stage Lines)
Trailways member 1949-1954
Bus companies generally listed in the July 1942 Russell's Guide or the 1952 Mass Transportation's Directory, and their predecessor and successor companies. This list is somewhat arbitrary and provides a general overview.
Las Vegas-Needles-Phoenix Stage Line - operated until 1947
Original route: Las Vegas-Needles-Phoenix
Nogales-Bisbee Stage - operated until 1983 (to Greyhound)
Original route: Nogales-Bisbee-Douglas
Spoon Bros. Stage Line - operated until 1959
Original route: Morenci-Safford