Sylvanus married Patty Fuller on 10 Jan 1791 in Newton, Middlesex, Massachusetts, USA. Patty (daughter of Elisha Fuller, Sr. and Ester Richardson) was born on 12 Aug 1763 in Newton, Middlesex, Massachusetts, USA; died on 19 Jun 1853 in Newton, Middlesex, Massachusetts, USA; was buried in East Parish Burying Ground, Newton, Middlesex, Massachusetts, USA. [Group Sheet] [Family Chart]

1. Caty Lowell was born on 8 Mar 1791 in Newton, Middlesex, Massachusetts, USA.
2. Sabrina Lowell was born on 31 Jul 1797 in Newton, Middlesex, Massachusetts, USA ; died on 1 Feb 1877 in Cambridge, Middlesex, Massachusetts, USA; was buried in Mount Auburn Cemetery, Cambridge, Middlesex, Massachusetts, USA .