Gregg Olson debuted on September 2, 1988, playing for the Baltimore Orioles at Memorial Stadium; he played his final game on June 22, 2001, playing for the Los Angeles Dodgers at Dodger Stadium.
Gregg Olson played in 64 games at pitcher for the Baltimore Orioles in 1990, starting in none of them. He played for a total of 223 outs, equivalent to 8.26 9-inning games. He made 4 putouts, had 4 assists, and committed no errors, equivalent to 0 errors per 9-inning game. He had one double play.
NFL player Jeff Olson played for Texas Christian.
Gregg Jefferies debuted on September 6, 1987, playing for the at ; he played his final game on May 29, 2000, playing for the Detroit Tigers at Comerica Park.
Ivy Olson debuted on April 12, 1911, playing for the Cleveland Naps at League Park II; he played his final game on July 21, 1924, playing for the Brooklyn Robins at Ebbets Field.
Tim Olson debuted on May 30, 2004, playing for the Arizona Diamondbacks at Bank One Ballpark; he played his final game on June 19, 2005, playing for the Colorado Rockies at Coors Field.
Karl Olson debuted on June 30, 1951, playing for the Boston Red Sox at Fenway Park II; he played his final game on June 10, 1957, playing for the Detroit Tigers at Briggs Stadium.
Marv Olson debuted on September 13, 1931, playing for the Boston Red Sox at Fenway Park I; he played his final game on April 30, 1933, playing for the Boston Red Sox at Fenway Park I.
Tommy Gregg debuted on September 14, 1987, playing for the Pittsburgh Pirates at Three Rivers Stadium; he played his final game on September 28, 1997, playing for the Atlanta Braves at Turner Field.
Vean Gregg debuted on April 12, 1911, playing for the Cleveland Naps at League Park II; he played his final game on August 25, 1925, playing for the Washington Senators at Griffith Stadium I.
Garrett Olson debuted on July 4, 2007, playing for the Baltimore Orioles at Oriole Park at Camden Yards; he played his final game on August 8, 2012, playing for the New York Mets at Citi Field.
Dave Gregg debuted on June 15, 1913, playing for the Cleveland Naps at League Park II; he played his final game on June 15, 1913, playing for the Cleveland Naps at League Park II.
Hal Gregg debuted on August 18, 1943, playing for the Brooklyn Dodgers at Ebbets Field; he played his final game on August 17, 1952, playing for the New York Giants at Polo Grounds IV.