He operated the large Harrison ranch from the early 1900s through 1950, when he sold it to his son and grandson.
Despite receiving the most number of votes of any candidate during the September primary, he lost in the general election to Republican S. F.
[19] In 1930 he once again ran for the Santa Cruz board of supervisors, but lost to incumbent Fred Hannah.
[20][21] Two years later, Harrison set his sights on returning to the state senate, and ran in the Democrat primary against incumbent C. C. Crenshaw, beating him decisively.
[26] He easily defeated H. C. Roesner in the Democrat primary, and then won against Republican Edward Alvarez in the general election.
[30] In an interesting twist, Roesner resigned from the senate in January, 1939, shortly after the 14th legislature convened.
[31] Despite his announcement that he was retiring from politics, Harrison ran again in 1940, defeating Mary Stella Rosenberg in the Democrat primary.
[36] He worked as a stagecoach driver for Wells Fargo in the late 1880s, driving a route between Benson and Guymas, Sonora, Mexico.
[2] Harrison was a well-known cattleman in southern Arizona, whose ranch, Rancho Bellotal, later known simply as the Harrison Ranch was located near Nogales, Arizona on the Santa Cruz River, and covered 12 square miles.
[2][3] Harrison was the president of The Santa Cruz Valley Bank and Trust Company.