Johnson was born in Telemark, Norway, on April 15, 1832, as the eldest of the five children of Anders Johnson (1804–1880) and his wife, Aaste Killing Koven (1808–1893).[2] His family immigrated to the United States in 1844, traveling via New York to reach Milwaukee.[2] In 1852, the family to Pleasant Springs, Wisconsin.[2] He married Karen Kristie Thompson in 1856. They had a daughter before her death in 1860. On October 31, 1861, Johnson married Kaia Nicoline Marie Kildahl. They had six children. He died of a stomach ulcer on November 10, 1901, and was buried at Forest Hill Cemetery.
Career
Johnson was a member of the Assembly in 1857. He served as Clerk of Dane County, Wisconsin, from 1861 to 1869.[2] From 1873 to 1874, he was a member of the Senate.[2] Other positions Johnson held include Town Clerk and Town Chairman of Pleasant Springs and justice of the peace.
Outside politics Johnson owned Fuller & Johnson, a company that produced farm machinery, having previously been a farmer.[3]