Career
Kellman resided in Galesville, Wisconsin. Kellman was born in Hillared, Sweden on April 24, 1869. He worked as a tin smith and then was in the hardware business.
He also managed a creamery.
Kellman served as mayor of Galesville and then served in the Wisconsin State Assembly from 1931 to 1934 as a Republican. He was a delegate to the 1936 Republican National Convention.