Main routes generally still existed in 1976.
Zephyr Lines (Minnesota Division) - operated until 1989
Original route: Minneapolis-Glenwood
1936-1952 was Liederbach Bus Co.
In 1968 suburban routes sold to public sector
1981-1989 was Four Star Lines
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.
Clipper Lines - operated until 1955
Original route: Olivia-Hinckley-Wilmar-St. Cloud
Elliott Transportation Co. - operated 1934-1949
Operated various directions from Fergus Falls
Minnesota Transit Lines - operated 1946-1978
Original route: Minneapolis-Waseca-Albert Lea
1956-1964 was Zephyr Lines
1964-1970 was Thoreson Lines
1970-1975 was S&A Lines
1975-1978 was Cooley's Bus Lines