These are the earliest Piute County motor vehicle registrations filed with the Utah Secretary of State's Office. Information is presented in this format:

name; residence; description of vehicle; date of registration; whether used for business, pleasure, or private transportation (this last for 1915 only)

• Chas J. Moorhouse, M.D.; Junction; Ford, Roadster, 22-1/2 horsepower, gasoline engine; 7 June 1912
• Samuel D. Brown; Koosharem; Ford, touring car, 20 hp; 9 April 1913
• D.L. Hall; Marysvale; Ford touring car, 20 hp; 4 October 1913
• Paul Jensen; Koosharem; Ford touring car, 20 hp; 14 August 1914
• Chas. V. Moorhouse, M.D.; Junction; Hupmobile, touring car, 32 hp; 6 August 1914
• Abe McIntosh; Junction; Ford, touring, 22 hp; 10 August 1914
• T.J. Riddle; Coyoto; Maxwell, touring, 25 hp; 27 August 1914
• J.H. Stoney; Junction; Studebaker Six, 29 hp; 16 April 1915
• H.C. Thompson; Marysvale; Buick, 28 hp; 2 April 1915
• C.L. King; Coyoto; Buick, touring, 22 hp; 1915; pleasure
• D.H. Robinson; Junction; Maxwell, touring, 21 hp; 1915; pleasure
• T.E. Ricketts; Coyoto; Maxwell, touring, 25 hp; 1915; pleasure
• Mineral Products Corporation; Marysvale; Jeffery truck, 38 hp; 1915; business
• Homer C. Thompson; Marysvale; Buick, touring, 25 hp; 1915; private
• J.R. Norton; Circleville; Studebaker, touring, 29 hp; 1915; pleasure
• T.F. Young; Kingston; Dodge, touring, 30 hp; 1915; pleasure
• Marysvale Cash Store; Marysvale; Buick, Truck; 1915; business
• Jas. A. Lane; Marysvale; Dodge, touring, 35 hp; 1915; business
• W.T. King; Marysvale; Studebaker, touring, 28 hp; 1915; private
• Cameron Merc. Co.; Marysvale; Buick, truck; 1915; business
• John H. Stoney; Junction; Studebaker, touring, 35 hp; 1915; pleasure
• J.R. Davis; Junction; Buick, truck, 37 hp; 1915; business
• T.J. Riddle; Coyote; Reo, touring, 35 hp; 1915; pleasure
• Mineral Products Corp., Marysvale; three (3) Jeffery trucks, each 32 hp; 1915; business
• Carl Veater; Circleville; Maxwell, touring, 22 hp; 1915; pleasure