William married Eva Malvina Fuller on 19 Aug 1874 in Winchester,Middlesex, Massachusetts, USA. Eva (daughter of George Henry Fuller and Nancy Evelina Blaisdell) was born in Aug 1853 in Seymour, New Haven, Connecticut, USA; died on 23 Jan 1932 in Winchester, Middlesex, Massachusetts, USA. [Group Sheet] [Family Chart]

1. Mary Eva Twombly was born on 30 Jun 1875 in Winchester,Middlesex, Massachusetts, USA; died on 18 Jan 1876 in Winchester,Middlesex, Massachusetts, USA.
2. Alice F. Twombly was born on 2 Jul 1876 in Winchester,,Massachusetts, USA; died on 22 Oct 1929 in Winchester,Middlesex, Massachusetts, USA.
3. Helen Maria Twombly was born on 15 Mar 1879 in Winchester,Middlesex, Massachusetts, USA; died on 29 Oct 1961 in Winchester,Middlesex, Massachusetts, USA; was buried in Wildwood Cemetery,Winchester,Middlesex, Massachusetts, USA.
4. William A. Twombly, Jr. was born on 10 Jul 1882 in Winchester,Middlesex, Massachusetts, USA; died on 19 Dec 1960; was buried on 20 Dec 1960 in Wildwood Cemetery,Winchester,Middlesex, Massachusetts, USA.
5. Eliza Ward Twombly was born on 20 Apr 1884 in Winchester,Middlesex, Massachusetts, USA; died on 27 Apr 1947 in Winchester,Middlesex, Massachusetts, USA; was buried on 29 Apr 1947 in Wildwood Cemetery,Winchester,Middlesex, Massachusetts, USA.