Johnny Marcum debuted on September 7, 1933, playing for the Philadelphia Athletics at Shibe Park; he played his final game on September 30, 1939, playing for the Chicago White Sox at Comiskey Park.
Johnny Marcum played in 39 games at pitcher for the Philadelphia Athletics in 1935, starting in none of them. He made 11 putouts, had 32 assists, and committed 5 errors, equivalent to .128 errors per game (estimate based on total games played in). He had one double play.
Johnny Marcum played in 37 games at pitcher for the Boston Red Sox in 1937, starting in none of them. He made 13 putouts, had 38 assists, and committed one error, equivalent to .027 errors per game (estimate based on total games played in). He had one double play.
Johnny Marcum played in 12 games at pitcher for the St. Louis Browns in 1939, starting in none of them. He made 4 putouts, had 5 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had one double play.
Johnny Marcum played in 19 games at pitcher for the Chicago White Sox in 1939, starting in none of them. He made 4 putouts, had 12 assists, and committed one error, equivalent to .053 errors per game (estimate based on total games played in). He had one double play.
Shaun Marcum debuted on September 6, 2005, playing for the Toronto Blue Jays at Rogers Centre; he played his final game on July 6, 2013, playing for the New York Mets at Citi Field.
Johnny Abrego debuted on September 4, 1985 and played his final game on October 3, 1985.
Johnny Allen debuted on April 19, 1932 and played his final game on September 26, 1944.
Johnny Antonelli debuted on July 4, 1948 and played his final game on September 4, 1961.
Johnny Babich debuted on June 19, 1934 and played his final game on August 28, 1941.
Johnny Barrett debuted on April 14, 1942 and played his final game on September 26, 1946.
Johnny Bassler debuted on July 11, 1913 and played his final game on September 30, 1927.
Johnny Bates debuted on April 12, 1906 and played his final game on October 10, 1914.