Glenn Spencer debuted on April 11, 1928, playing for the Pittsburgh Pirates at Forbes Field; he played his final game on September 24, 1933, playing for the New York Giants at Polo Grounds IV.
Glenn Elliott debuted on April 17, 1947, playing for the Boston Braves at Braves Field; he played his final game on September 29, 1949, playing for the Boston Braves at Braves Field.
Glenn Gulliver debuted on July 17, 1982, playing for the Baltimore Orioles at Memorial Stadium; he played his final game on October 1, 1983, playing for the Baltimore Orioles at Memorial Stadium.
Sean Spencer debuted on May 6, 1999, playing for the Seattle Mariners at Kingdome / Safeco Field; he played his final game on September 28, 2000, playing for the Montreal Expos at Stade Olympique.
Glenn Hoffman debuted on April 12, 1980, playing for the Boston Red Sox at Fenway Park II; he played his final game on September 23, 1989, playing for the California Angels at Anaheim Stadium.
Spencer Heath debuted on May 4, 1920, playing for the Chicago White Sox at Comiskey Park; he played his final game on July 17, 1920, playing for the Chicago White Sox at Comiskey Park.
Glenn Spencer played in 41 games at pitcher for the Pittsburgh Pirates in 1930, starting in none of them. He made 4 putouts, had 25 assists, and committed 3 errors, equivalent to .073 errors per game (estimate based on total games played in). He had one double play.
Glenn Abbott debuted on July 29, 1973 and played his final game on August 8, 1984.
Glenn Adams debuted on May 4, 1975 and played his final game on October 3, 1982.
Glenn Beckert debuted on April 12, 1965 and played his final game on April 27, 1975.
Glenn Borgmann debuted on July 1, 1972 and played his final game on October 5, 1980.
Glenn Braggs debuted on July 18, 1986 and played his final game on September 10, 1992.
Glenn Brummer debuted on May 25, 1981 and played his final game on October 6, 1985.
Glenn Burke debuted on April 9, 1976 and played his final game on June 4, 1979.
Glenn Chapman debuted on April 18, 1934 and played his final game on September 30, 1934.
Glenn Cox debuted on September 20, 1955 and played his final game on April 23, 1958.
Glenn Crawford debuted on April 22, 1945 and played his final game on April 22, 1946.
Glenn Davis debuted on September 2, 1984 and played his final game on May 23, 1993.