James married Elizabeth Wanton Baker on 11 May 1857 in Middleport, Niagara, NY. Elizabeth (daughter of Alden Sprague Baker and Elizabeth Wanton Wickham) was born on 11 May 1837 in Middleport, Niagara, NY; died in 1921 in Denver, Denver, CO; was buried in Crown Hill Cemetery, Wheat Ridge, CO. [Group Sheet] [Family Chart]

1. John Baker Sibley was born on 2 Oct 1859 in Kankakee, Kankakee, Il; died in 1955 in Miami, Dade, FL; was buried in Oak Woods Cemetery, Chicago, IL.
2. George Murdock Sibley was born on 22 Sep 1861 in Fulton, NY; died in 1939 in Colorado.
3. Mary Elizabeth Sibley was born on 31 Aug 1866 in Fulton, NY; died on 14 Jan 1904 in Chicago, Cook, IL.
4. Edward Allen Sibley was born on 25 Jun 1876 in Chicago, Cook, IL; died on 22 Nov 1931 in Centrol Luzon, PH.
5. Kate Sibley was born on 25 Dec 1879 in Chicago, Cook, IL; died on 20 Oct 1949 in New York, New York, NY; was buried in Oak Woods Cemetery, Chicago, IL.

James married Mary Ann Whitney on 24 Dec 1823 in Allen's Hill, Richmond, NY. [Group Sheet] [Family Chart]