JH Bush originally had cars built to be presented to graduates from his Bush Auto Mechanics School in Chicago, but in 1916 he organised the Bush Motor Co to sell cars to the general public.
The Bush MotorCo did not manufacture cars themselves, but bought cars from manufacturers such as Huffman, Crow-Elkhart, Piedmont and Norwalk. The Bush was sold only via mail order. When a customer sent an order by mail for a car, Bush sent the cheque to one of those established companies, who would send him a car. A Bush nameplate was fitted to the radiator and the car was shipped directly to the customer, often by rail. Lycoming and Continental motors were used for the 4- and 6-cylinder versions of the car.
By the mid-1920's there were no producers who were willing to build cars for Bush, and with no supply of vehicles, the company closed down in 1925.