Career
Born in the Town of Eagle Point, Chippewa County, Wisconsin, Rheingans grew up on a farm. In 1920, he moved to Chippewa Falls, Wisconsin and worked for Farmers Produce Company and was in dairy and truck farming. He also worked as a clerk in a hardware store.
Rheingans served in the Wisconsin State Assembly and was a Republican.
He also served as sergeant at arms in the 1931, 1935, and 1937 Wisconsin Legislatures. Rheingans died in Chippewa Falls, Wisconsin.