The Wheeler Automobile Manufacturing Co. was based in Marlboro, Massachusetts. Its cars were designed by E.O. Wheeler and built in a machine shop owned by his father. The vehicles produced were fitted with single-cylinder engines. The first two cars used engines of unknown origin, possibly built by Wheeler himself, though these may not have proven satisfactory. As a result, the third car was equipped with a 4.5hp De Dion-Bouton engine,…