The following teaser is from a March 19, 2019 article posted at yankton.net.
PIERRE — The State Archives of the South Dakota State Historical Society recently added to its website searchable indexes to motor vehicle licenses issued from 1905-1911 and automobile dealer licenses issued from 1913-1919.
Visit the State Archives website at history.sd.gov/archives. A link is found on the Collection Indexes page to Automobile Licenses/Dealers.
The first auto license was issued to Jason T. Bigelow of Flandreau in March of 1905. The vehicle had a 4.5-horsepower Olds Motor Works engine and featured signals of a gas lamp and bell.