About Dolly Stark (umpire)
Albert D. "Dolly" Stark was an American umpire in Major League Baseball who worked in the National League from 1928 to 1935 and from 1937 to 1940. Stark was the first Jewish umpire in modern baseball. As an umpire, Stark was known for being active and mobile, and constantly working to improve himself. This was the first and only time a "Day" has been held in honor of a Major League Baseball umpire.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.