Apperson 1 Auburn 6 Ballot 1 Bentley 1 Biddle 6 Bugatti 1 Buick 10 Cadillac 10 Case 7 Chevrolet 15 Citroen 1 Cleveland 1 Cole 7 Cunningham 7 Davis 2 Dodge 8 Du Pont 1 Durant 1 Elcar 2 Essex 2 Ford 27 Fordson 2 Franklin 6 Gardner 1 Graham Brothers 4 Hispano-Suiza 1 Hudson 10 Hupmobile 6 Jewett 2 Jordan 2 Locomobile 7 Mack Trucks 1 Marmon 6 Maxwell 6 Minerva 1 Mitchell 4 Moon 2 Nash 9 Oakland 6 Oldsmobile 8 Packard 12 Paige 7 Peerless 1 Pierce-Arrow 8 Reo 11 Rickenbacker 2 Roamer 1 Rolls Royce 1 Scripps Booth 1 Star 3 Stearns Knight 3 Studebaker 9 Stutz 7 Willys 9 Winton 5