Bobby Brown debuted on September 22, 1946, playing for the New York Yankees at Yankee Stadium I; he played his final game on June 30, 1954, playing for the New York Yankees at Yankee Stadium I.
Bobby Hill debuted on May 10, 2002, playing for the Chicago Cubs at Wrigley Field; he played his final game on July 20, 2005, playing for the Pittsburgh Pirates at PNC Park.
Bobby Jones debuted on August 14, 1993, playing for the New York Mets at Shea Stadium; he played his final game on September 2, 2002, playing for the San Diego Padres at Qualcomm Stadium.
Bobby Cramer debuted on September 13, 2010 and played his final game on June 9, 2011.
Bobby Doerr debuted on April 20, 1937 and played his final game on September 7, 1951.
Bobby Abreu debuted on September 1, 1996 and played his final game on October 2, 2012.
Bobby Avila debuted on April 30, 1949 and played his final game on September 29, 1959.
Bobby Bonilla debuted on April 9, 1986 and played his final game on October 7, 2001.
Bobby Crosby debuted on September 2, 2003 and played his final game on August 21, 2010.
Bobby Etheridge debuted on July 16, 1967 and played his final game on October 2, 1969.
Bobby Cramer debuted on September 13, 2010 and played his final game on June 9, 2011.
Bobby Doerr debuted on April 20, 1937 and played his final game on September 7, 1951.
Bobby Abreu debuted on September 1, 1996 and played his final game on October 2, 2012.
Bobby Avila debuted on April 30, 1949 and played his final game on September 29, 1959.
Bobby Bonilla debuted on April 9, 1986 and played his final game on October 7, 2001.
Bobby Adams debuted on April 16, 1946 and played his final game on April 22, 1959.
Bobby Ayala debuted on September 5, 1992 and played his final game on October 2, 1999.
Bobby Balcena debuted on September 16, 1956 and played his final game on September 29, 1956.
Bobby Bolin debuted on April 18, 1961 and played his final game on September 30, 1973.
Bobby Bonner debuted on September 12, 1980 and played his final game on September 28, 1983.