Isaac married Elizabeth Hull on 13 Mar 1805 in Newton, Middlesex, Massachusetts, USA. Elizabeth (daughter of Major, General, Senator, Governor William Hull and Sarah Fuller) was born on 22 Jun 1784 in Newton, Middlesex, Massachusetts, USA; died on 20 Oct 1864 in Maspeth, Queens, New York, USA; was buried in Mount Auburn Cemetery, Cambridge, Middlesex, Massachusetts, USA. [Group Sheet] [Family Chart]

1. Isaac Hull McLellan, Jr. was born on 21 May 1806 in Portland, Cumberland, Maine, USA; died on 20 Aug 1899 in Long Island City, Queens, New York, USA; was buried in Mount Auburn Cemetery, Cambridge, Middlesex, Massachusetts, USA.
2. William Hull McLellan, Sr. was born on 6 Dec 1808 in Portland, Cumberland, Maine, USA; died on 24 May 1883 in Boston, Suffolk, Massachusetts, USA; was buried in Mount Auburn Cemetery, Cambridge, Middlesex, Massachusetts, USA.
3. Henry Blake McLellan was born on 16 Sep 1809 in Portland, Cumberland, Maine, USA; died on 4 Sep 1833 in Boston, Suffolk, Massachusetts, USA; was buried in Mount Auburn Cemetery, Cambridge, Middlesex, Massachusetts, USA.
4. Parkman McLellan was born in Apr 1811 in Portland, Cumberland, Maine, USA; died on 24 Jan 1812 in Portland, Cumberland, Maine, USA; was buried in Mount Auburn Cemetery, Cambridge, Middlesex, Massachusetts, USA.
5. James A. McLellan was born on 5 Mar 1813 in Boston, Suffolk, Massachusetts, USA; died on 31 Dec 1849 in Sacramento, Sacramento, California, USA; was buried in Mount Auburn Cemetery, Cambridge, Middlesex, Massachusetts, USA.
6. Mary Elizabeth McLellan was born on 3 May 1815 in Boston, Suffolk, Massachusetts, USA; died on 29 Sep 1885 in Greenport, Suffolk, New York, USA; was buried in Sterling Cemetery, Greenport, Suffolk, New York, USA.
7. Dr. Francis Miller McLellan was born on 21 Jan 1817 in Boston, Suffolk, Massachusetts, USA; died on 12 Nov 1863 in New York, USA; was buried in Mount Auburn Cemetery, Cambridge, Middlesex, Massachusetts, USA.
8. Sarah Ann Fuller McLellan was born on 18 Sep 1820 in Boston, Suffolk, Massachusetts, USA; died on 20 May 1905 in Brookline, Norfolk, Massachusetts, USA; was buried in Mount Auburn Cemetery, Cambridge, Middlesex, Massachusetts, USA.