Aaron S Benson moved to Colorado in the late 1860s after living in his native Monroe County, New York and in Iowa. He operated the Colorado Nursery, located two miles east of Golden, where he raised garden produce and fruit trees. After completing his term as Commissioner, Benson moved to Larimer County in 1878 to build the Louden Canal. He later served as a Larimer County Commissioner in 1880 to 1883 and 1886 to 1889, was a member of the State Legislature in 1883, and was president of the Bank of Loveland. In both Jefferson and Larimer counties he served a total of 22 years on school district boards.