Prosper married Mary Polly Goff on 3 Apr 1814 in Richford, Franklin, Vermont. Mary (daughter of Hezekiah Goff, II and Annah Ward) was born in 1789 in Greenfield, Franklin, Massachusetts; died on 30 Aug 1868 in Three Rivers, Hampden, Massachusetts; was buried in Three Rivers, Hampden, Massachusetts. [Group Sheet] [Family Chart]

1. Ogilvie Nelson Powell was born on 20 Jan 1815 in Richford, Franklin, Vermont; died on 8 Aug 1887 in Palmer, Hampden, Massachusetts; was buried in Three Rivers, Hampden, Massachusetts.
2. Sarah Jane Arnold was born on 27 Apr 1816 in Vermont; died on 25 Sep 1896 in Palmer, Hampden County, Massachusetts, United States of America; was buried in Three Rivers, Hampden, Massachusetts.
3. Mary Alzada Powell was born in 1819 in Troy, Orleans, Vermont; died on 10 Nov 1857 in Palmer, Hampden, Massachusetts; was buried in Three Rivers, Hampden, Massachusetts.
4. Adelia C Howard was born on 21 May 1821 in Richford, Franklin, Vermont; died on 14 Feb 1899 in Springfield, Hampden, Massachusetts; was buried in Thorndike, Hampden, Massachusetts.
5. Azubah Anna Richards was born on 4 Jul 1828 in Richford, Franklin, Vermont; died on 7 Apr 1906 in Springfield, Hampden, Massachusetts; was buried in Springfield, Hampden, Massachusetts,.
6. John Powell was born about 1832 in Vermont; and died.
7. Levina Maria Powell was born on 21 Aug 1833 in Coventry, Orleans, Vermont; died on 15 Nov 1911 in Springfield, Hampden, Massachusetts; was buried in Springfield, Hampden, Massachusetts.