In 1944 acquired the following companies:
Eastern Trails/Eastern Trailways
Formed in 1937, joined Trailways in 1939.
Operated from New York to Washington.
Northern Trails/Northern Trailways
Formed in 1938, acquired route from Safeway Lines and joined Trailways in 1939.
Operated from New York to Pittsburgh.
All American Bus Lines in 1946 acquired Burlington Transportation Co. and renamed to American Buslines, and joined Trailways.
In 1948 acquired control of the following company:
Operated various directions from Sacramento CA
American Buslines sold in 1953 to Transcontinental Bus System/Continental Trailways.