[1] Three brothers, James W., William P. and George W. Lyons purchased the Atlas Engine Works and reorganized as the Lyons-Atlas Company.

[1] The Lyons-Knight featured Knight sleeve-valve engines and worm-drive rear axles, that were designed by Harry A. Knox who had previously worked at the Atlas-Knight Automobile Company in Springfield, Massachusetts.

[2][1] Beginning in 1913, the Lyons-Knight Model K-4 offered a four-cylinder engine that produced 50-hp and was installed in a choice of five or seven passenger touring car, sedan, or berline bodies, using a 130-inch wheelbase.

For 1914 a Model K-6, six-cylinder engine was offered with the same wheelbase in either a five or seven passenger touring sedan for $3,200 (equivalent to $97,340 in 2023).

Automobile manufacturing ended in 1915 soon after Harry Knox resigned from the company.