The story
Charles F. Carroll, the company's founder, was an advertising mogul who had success in an account with Fisk Tires through an agency he operated in nearby Cleveland. He attempted to purchase the Moon Automobile Company of St. Louis, Missouri, following the death of Joseph W. Moon in 1918 but did not succeed. Carroll's earnings from the advertising business financed his car-building venture, and he built automobiles in a factory located in a former brass works on Washington Avenue in Lorain, Ohio.
The Carroll car was first distributed by Lucas and Christensen of Cleveland, according to an October 23, 1920 article in Motor Age magazine.
From Wikipedia’s article on Carroll Six, shared under CC BY-SA 4.0.4