Career
Born in the town of Lemonweir, Juneau County, Wisconsin, Brunner went to school in Mauston, Wisconsin. He then farmed and later was a stationary engineer He was also in general merchandising.
Brunner lived in Lyndon Station, Wisconsin.
From 1941 to 1947, Brunner served in the Wisconsin State Assembly as a Republican. In 1948, Brunner mived to Madison, Wisconsin where he worked as a stationary engineer for the United States Forest Products Laboratory.
In 1968, Brunner moved to Wausau, Wisconsin. Brunner died in Wausau, Wisconsin of a heart attack.