John Vernon Diener (January 23, 1887 – May 29, 1937) was mayor of Green Bay, Wisconsin. Biography Diener was born in Baraboo, Wisconsin, in 1887. He graduated from Notre Dame Law School before moving to Green Bay. Diener later practiced law with future U.S. Representative Thomas F. Konop. In 1914, Diener married Margaret Wigman. They had six children. During World War I, he served as an officer in the United States Army with the 119th Infantry Regiment of the 30th Infantry Division. Diener died in 1937. Political career Diener was mayor from 1929 to 1937. Previously, he was an unsuccessful candidate for district attorney of Brown County, Wisconsin. He was a Democrat. References People from Baraboo, Wisconsin Mayors of Green Bay, Wisconsin Wisconsin Democrats Wisconsin lawyers Military personnel from Wisconsin United States Army officers United States Army personnel of World War I Notre Dame Law School alumni 1887 births 1937 deaths 20th-century American politicians 20th-century American lawyers