In October 1836, he was elected to serve in the 1st Wisconsin Territorial Assembly as one of seven members of the House of Representatives (the lower house) from Iowa County. He would attend the three sessions, held between October 25, 1836, and June 25, 1838.[2]
When in December 1837, a new county was to be split off from the over-large Iowa County, Boyle as the Representative of the area was allowed to choose a name. He chose Green County, after the verdant color of the vegetation there. Another member suggested that it be modified to "Greene" after General Nathanael Greene, but Boyles insisted on his original choice.[3]
