William George Evans, nicknamed "The Boy Umpire," was an American umpire in Major League Baseball who worked in the American League from 1906 to 1927. He became, at age 22, the youngest umpire in major league history, and later became the youngest to officiate in the World Series at age 25.
Upon his retirement at age 43, his 3,319 career games ranked fifth in major league history; his 1,757 games as a home plate umpire ranked third in AL history, and remain the eighth most by a major league umpire. He later became a key front office executive for three teams and president of the minor league Southern Association.