Allis Chalmers 1 Avery 1 Bentley 1 Buick 33 Cadillac 27 Case 1 Caterpillar 1 Chevrolet 42 Chrysler 29 Cletrac 1 CO-OP 1 Crosley 2 DeSoto 32 Diamond T 1 Dodge 42 Eagle 1 Farmall 1 Federal 1 Ford 49 Ford Tractor 14 Fordson 1 GMC 13 Graham 7 Graham-Bradley 1 Harley-Davidson 2 Huber 1 Hudson 15 Hupmobile 5 International 3 Jaguar 1 John Deere 1 LaSalle 18 Lincoln 24 Love 1 Massey-Harris 1 McKormick-Deering 1 Mercedes-Benz 1 Mercury 29 MG 3 Minneapolis Moline 1 Nash 16 Oldsmobile 28 Oliver 1 Packard 25 Plymouth 37 Pontiac 31 Reo 1 Silver King 1 Studebaker 30 Willys 15 Yellow Coach 4