Mark Mangerson

Mark A. Mangerson (December 26, 1948 – September 25, 2020) was an American lawyer and judge from Oneida County, Wisconsin. He served three years as a judge of the Wisconsin Court of Appeals, from his appointment in December 2011 until his retirement on serving in the vast northern Wisconsin District III region. Before his appointment to the Court of Appeals, he served 23 years as a Wisconsin circuit court judge in Oneida County, and earlier served as district attorney of Vilas and Oneida counties.

Biography Mark Mangerson was born and raised in Rhinelander, Wisconsin, graduating from Rhinelander High School in 1967. He went on to attend Valparaiso University, where he earned his bachelor's degree in 1971 and his J.D. in 1974.

Mangerson returned to Wisconsin and was hired as an assistant district attorney in Vilas County, Wisconsin, in August 1974. After a year in that role, the district attorney, James Mason, resigned his office, and Mangerson began serving as acting district attorney. On January 20, 1976, Governor Patrick Lucey formally appointed Mangerson to serve out the remainder of Mason's term as district attorney.

Just six months later, however, Lucey appointed Mangerson as district attorney of neighboring Oneida County. In the fall 1976 election, Mangerson sought election to a full term as district attorney, running on the Democratic Party ticket; he won the November 1976 general election by a significant margin, and was re-elected without opposition in 1978. Shortly after winning re-election, however, Mangerson resigned from the district attorney's office to join a regional law firm. During his years in private legal practice, Mangerson served several times as special prosecutor in Vilas and Oneida counties when the district attorney was conflicted.

In 1987, the Wisconsin Legislature added new Wisconsin circuit court seats, including a new branch in Oneida County. Mangerson declared that he would run for the new judicial seat, and faced a race against John Hogan, who had succeeded him as district attorney. Mangerson ultimately prevailed in the April 1988 election, taking about 60% of the vote. He went on to win re-election three times, serving 23 years as circuit court judge.

In 2011, Wisconsin Court of Appeals judge Edward R. Brunner resigned his seat. Governor Scott Walker appointed Mangerson to succeed him. He was elected to a full term in April 2012, but retired just two years later, in July 2014. During his judicial career, he was active in state judicial organizations, including the Wisconsin Judicial Conference and the Wisconsin Judicial College

Mangerson died on September 25, 2020.