Sylvanus married Susan Clarke Fuller on 15 Sep 1854 in Essex, Chittenden, Vermont, USA. Susan (daughter of Asa Fuller, Jr. and Sarah Elizabeth Howe) was born on 9 Feb 1831 in West Roxbury, Suffolk, Massachusetts, USA; died on 26 Sep 1917 in Cambridge, Middlesex, Massachusetts, USA; was buried in Cambridge Cemetery, Cambridge, Middlesex, Massachusetts, USA. [Group Sheet] [Family Chart]

1. Lydia Ann Parsons was born on 30 Dec 1855 in Cambridge, Middlesex, Massachusetts, USA; died on 2 Mar 1929 in Cambridge, Middlesex, Massachusetts, USA; was buried in Cambridge Cemetery, Cambridge, Middlesex, Massachusetts, USA.
2. Harriet Alice Parsons was born on 15 Oct 1858 in Cambridge, Middlesex, Massachusetts, USA; died on 10 Aug 1941 in Cambridge, Middlesex, Massachusetts, USA; was buried in Cambridge Cemetery, Cambridge, Middlesex, Massachusetts, USA.
3. Emma Frances Parsons was born on 21 Jun 1862 in Cambridge, Middlesex, Massachusetts, USA; died on 9 Jan 1919 in Winchester, Middlesex, Massachusetts, USA; was buried in Cambridge Cemetery, Cambridge, Middlesex, Massachusetts, USA.
4. Eva Eugenia Parsons was born on 4 Aug 1867 in Cambridge, Middlesex, Massachusetts, USA; died on 11 Dec 1868 in Cambridge, Middlesex, Massachusetts, USA; was buried in Cambridge Cemetery, Cambridge, Middlesex, Massachusetts, USA.
5. Susan Mabel Parsons was born on 28 Oct 1869 in Cambridge, Middlesex, Massachusetts, USA; died on 28 Nov 1929 in Cambridge, Middlesex, Massachusetts, USA.