Career
From 1967 to 1975 Gundersen was the mayor of Hamar. He served as a deputy representative to the Norwegian Parliament from the Market towns of Hedmark and Oppland counties during the terms 1945–1949 and 1950–1953.
From 1967 to 1975 Gundersen was the mayor of Hamar. He served as a deputy representative to the Norwegian Parliament from the Market towns of Hedmark and Oppland counties during the terms 1945–1949 and 1950–1953.
He had been a member of Hamar county council since 1952, and became deputy mayor in 1962.