Joseph married Lucy Locke Sprague on 24 Nov 1850 in Boston, Suffolk, Massachusetts, USA. Lucy (daughter of Miles Sprague and Mary W. Fuller) was born on 16 Oct 1820 in Watertown, Middlesex, Massachusetts, USA; died on 23 Nov 1891 in Watertown, Middlesex, Massachusetts, USA; was buried in Common Street Cemetery, Watertown, Middlesex, Massachusetts, USA. [Group Sheet] [Family Chart]

1. Frederick Sprague Milner was born on 19 Aug 1852 in Boston, Suffolk, Massachusetts, USA; died on 27 Mar 1922 in Waltham, Middlesex, Massachusetts, USA; was buried in Common Street Cemetery, Watertown, Middlesex, Massachusetts, USA.
2. Mary Alice Milner was born on 17 Jul 1857 in Boston, Suffolk, Massachusetts, USA; died on 25 Jan 1927 in Newton, Middlesex, Massachusetts, USA; was buried in Common Street Cemetery, Watertown, Middlesex, Massachusetts, USA.