Horatio Nelson Jackson
Horatio Nelson Jackson (March 25, 1872 – January 14, 1955) was a Canadian-American physician, Army medical officer, businessman, and automobile pioneer. In 1903, he and his hired mechanic and driving partner Sewall K. Crocker became the first people to drive an automobile across the United States, a road trip from San Francisco to New York City, with additional miles travelled to his home in Vermont.