Elmer Knetzer
Elmer Ellsworth Knetzer was a professional baseball player who played pitcher in the Major Leagues from 1909 to 1917. He played for the Brooklyn Dodgers, Pittsburgh Rebels, Boston Braves, and Cincinnati Reds.
Knetzer pitched in the minor leagues through 1933, when he was 47 years old. He pitched in 19 games for the Springfield Chicks at age 47 and compiled a 7-7 record in 1933, his final season as a player and 16 years removed from his last major league appearance.