Stan Williams debuted on May 17, 1958, playing for the Los Angeles Dodgers at Los Angeles Memorial Coliseum; he played his final game on August 1, 1972, playing for the Boston Red Sox at Fenway Park II.
Stan Andrews debuted on June 11, 1939 and played his final game on September 30, 1945.
Stan Bahnsen debuted on September 9, 1966 and played his final game on October 2, 1982.
Stan Baumgartner debuted on June 26, 1914 and played his final game on May 30, 1926.
Stan Benjamin debuted on September 16, 1939 and played his final game on September 16, 1945.
Stan Clarke debuted on June 7, 1983 and played his final game on September 29, 1990.
Stan Cliburn debuted on May 6, 1980 and played his final game on September 24, 1980.
Stan Coveleski debuted on September 10, 1912 and played his final game on August 3, 1928.
Stan Fansler debuted on September 6, 1986 and played his final game on October 4, 1986.
Stan Ferens debuted on June 10, 1942 and played his final game on September 29, 1946.
Stan Belinda debuted on September 8, 1989 and played his final game on September 3, 2000.
Stan Hollmig debuted on April 19, 1949, playing for the Philadelphia Phillies at Shibe Park; he played his final game on September 26, 1951, playing for the at .
Stan Williams played in 46 games at pitcher for the Minnesota Twins in 1971, starting in 1 of them. He played for a total of 234 outs, equivalent to 8.67 9-inning games. He made 4 putouts, had 8 assists, and committed one error, equivalent to .115 errors per 9-inning game. He had one double play.