Dan O'Connor debuted on June 3, 1890, playing for the Louisville Colonels at Eclipse Park I; he played his final game on July 19, 1890, playing for the Louisville Colonels at Eclipse Park I.
Dan Boitano debuted on October 1, 1978 and played his final game on October 1, 1982.
Dan Brouthers debuted on June 23, 1879 and played his final game on October 4, 1904.
Dan Cotter debuted on July 16, 1890 and played his final game on July 16, 1890.
Dan Dugan debuted on September 5, 1928 and played his final game on July 16, 1929.
Dan Woodman debuted on July 10, 1914, playing for the Buffalo Buffeds at ; he played his final game on May 12, 1915, playing for the Buffalo Blues at .
There are several Dan O'Connors of note in music, sports and politics. Some are alive and some are not.
Dan Abbott debuted on April 19, 1890 and played his final game on May 23, 1890.
Dan Adams debuted on May 22, 1914 and played his final game on September 26, 1915.
Dan Ardell debuted on September 14, 1961 and played his final game on September 27, 1961.
Dan Bankhead debuted on August 26, 1947 and played his final game on July 18, 1951.
Dan Bickham debuted on August 13, 1886 and played his final game on August 13, 1886.
Dan Boitano debuted on October 1, 1978 and played his final game on October 1, 1982.
Dan Boone debuted on September 10, 1919 and played his final game on October 6, 1923.
Dan Briggs debuted on September 10, 1975 and played his final game on July 3, 1982.
Dan Brouthers debuted on June 23, 1879 and played his final game on October 4, 1904.
Dan Carlson debuted on September 13, 1996 and played his final game on June 23, 1999.
Dan Casey debuted on August 18, 1884 and played his final game on October 4, 1890.