Education
Born in Gnesen, near Koenigsberg, East Prussia, Germany, Gehrmann attended the common schools in Germany. He attended night school.
Born in Gnesen, near Koenigsberg, East Prussia, Germany, Gehrmann attended the common schools in Germany. He attended night school.
He was employed in a packing plant in Chicago, Illinois, and later learned the printing trade on a German-language daily newspaper. He moved to Wisconsin and settled on a farm near Neillsville, in Clark County in 1896 and engaged in agricultural pursuits. He moved to a farm near Mellen, Wisconsin, in Ashland County in 1915.
He served as clerk of the school board 1916–1934, town assessor 1916–1921, and chairman of the town board 1921–1932.
Gehrmann conducted farmers" institutes throughout the State for the University of Wisconsin–Madison College of Agriculture 1920–1933. He served in the Wisconsin State Assembly 1927–1933.
He served as delegate to the Republican National Convention in 1932. Gehrmann was elected as a Progressive to the Seventy-fourth and to the three succeeding Congresses (January 3, 1935 – January 3, 1943).
He represented Wisconsin"s 10th congressional district.
He was an unsuccessful candidate for reelection in 1942 to the Seventy-eighth Congress. He engaged in work for the United States Department of Agriculture from January 1943 until April 1945. Gehrmann was elected to the Wisconsin State Assembly in 1946, 1948, 1950, and 1952.
Gehrmann was elected to the Wisconsin State Senate in 1954 for the term ending in January 1957.
He died of a heart attack in Mellen, Wisconsin, July 12, 1958. He was interred in Mellen Union Cemetery.
Wisconsin Progressive Party, Republican Party.
He served as member of the Wisconsin State Senate in 1933 and 1934.