Jocko Conlan
John Bertrand "Jocko" Conlan (December 6, 1899 – April 16, 1989) was an American Hall of Fame umpire who worked in the National League from 1941 to 1965. He previously had a brief career as an outfielder with the Chicago White Sox.
Read more about Jocko Conlan: Early Life, Umpiring Career, Argument With Leo Durocher, Popular Culture, After Retirement