Joseph married Mary Henrietta Mills on 31 Mar 1909 in Cedar Hill, Anson County, North Carolina. Mary (daughter of Willis Hertley Mills and Lydia Ann Barbour) was born on 6 Dec 1860 in Anson Co.,N.C.; died on 7 Mar 1929 in Gaffney,Cherokee Co.,S.C.; was buried in Gaffney, Cherokee County, South Carolina, United States of America. [Group Sheet] [Family Chart]

1. Oscar Alonzo Sullivan was born on 16 Jan 1884 in Anson County, North Carolina; died on 22 May 1921 in Shelby, Cleveland County, North Carolina.
2. Fleata Sullivan was born on 31 Dec 1885 in Anson County, North Carolina; died on 12 Jun 1889 in North Carolina USA.
3. Pansy Sullivan was born on 9 Mar 1887 in Anson County, North Carolina; died on 29 Mar 1982 in Roanoke Rapids, Halifax County, North Carolina.
4. Flossie B. Sullivan was born on 24 Sep 1889 in Anson County, North Carolina; died on 28 Oct 1891 in Anson County, North Carolina.
5. Joseph Hercules Sullivan was born on 23 Jul 1891 in Anson County, North Carolina; died on 27 Oct 1967 in Gaffney, Cherokee County, South Carolina; was buried in Gaffney, Cherokee County, South Carolina.
6. Harold Eugene Sullivan was born on 5 Apr 1893 in Anson County, North Carolina; died on 3 Sep 1976 in Greenville, Greenville County, South Carolina; was buried in Gaffney, Cherokee County, South Carolina.
7. Annie H. Sullivan was born on 19 Mar 1895 in Wadesboro, Anson County, North Carolina; died on 6 Oct 1978 in Union County, South Carolina.