Clarence "Ace" Parker, the oldest living member of the Pro Football Hall of Fame, turns 100 on Thursday. He is only the fourth former football player to ever reach the century mark.

Parker played in the NFL from 1937-46 with the Brooklyn Dodgers and New York Yankees. He played quarterback, running back, defensive back and kicker during his career. According to Pro Football Reference, Parker led the league in passing yards in ’38 with 865 and in interceptions in ’40 with six.

Parker also played baseball in the Major Leagues, suiting up for the Philadelphia A’s in 1937 and ’38.

Parker’s NFL career (68 games) is among the shortest of any player enshrined in the Pro Football Hall of Fame. He missed games during his career because of baseball obligations, and he also missed three seasons due to his service in the Navy during World War II.