Mortimer Roberts, #31 Abbott-Detroit, Tiedman Trophy Race

Charles Abbott formed Abbott Motor Company in Detroit in 1909. The firm offered multiple models under the Abbott-Detroit brand, all priced from about $1,200 up to $3,500. Abbott-Detroit cars competed successfully in early circuit races and hill climbs. The company overreached itself by relocating to a larger factory in Cleveland in 1916. Bankruptcy ended operations in early 1918.