Harry Smith (1874)
Cal Hubbard (1900)
Ken Keltner (1916)
Jim Donohue (1938)
Ed Stroud (1939)
Ed Spiezio (1941)
Dave McNally (1942)
Dave Trembley (1951)
Mike Gallego (1960)
Matt Nokes (1963)
Fred McGriff (1963)
Eddie Taubensee (1968)
Steve Trachsel (1970)
Tim Byrdak (1973)
David Dellucci (1973)
Mike Napoli (1981)
Javy Guerra (1985)

Cal Hubbard was an American League umpire from 1936-1951.  He is in the Baseball Hall of Fame, the Pro Football Hall of Fame, and the College Football Hall of Fame.

Dave Trembley was the manager of the Baltimore Orioles from 2007-2010.

David Dellucci was drafted by Minnesota in the eleventh round in 1994, but did not sign.

Right-hander James Thomas Donohue made six appearances for the Twins in 1962. He was born in St. Louis, and the Cardinals signed the home town boy as a free agent in 1956. He pitched pretty well in the minors, especially when you consider that the Cardinals could never make up their mind whether he should be a starter or a reliever, using him in both roles every year. In June of 1960, St. Louis traded Donohue to the Dodgers for John Glenn. The Tigers took him in the Rule 5 draft the following off-season, and after pitching well for them in 14 appearances, he was traded to the Angels. He did fairly well for them out of the bullpen as well, getting five saves at a time when many teams did not have a closer as we know it today. In May of 1962, Donohue was traded to the Twins for Don Lee. He made six appearances with the Twins, starting once. He worked 10.1 innings, posting an ERA of 6.97, and then went back to the minors, never to return to the big leagues. He was in the Twins' system for two more years, but was out of baseball after 1964.  He apparently returned to the St. Louis area after leaving baseball.  Jim Donohue passed away on September 9, 2017.  The obituary I found did not say what he had done after leaving baseball, but noted that "his love for baseball continued throughout his lifetime."