Formed in 1929 as a company jointly owned by Pickwick Stages and Greyhound. Pickwick Stages had been incorporated in 1912. In 1932, Pickwick-Greyhound Lines was renamed Western Greyhound Lines. And in 1933, Western Greyhound Lines was merged into Southwestern Greyhound Lines.
Southern Kansas Greyhound Lines was a joint operation with Southern Kansas Stage Lines, which had previously operated service competing with Pickwick-Greyhound Lines.
Reorganized 1970's as KG Lines.