1. M.E. Chesebrough, Descendants of John Somerville
2. B.L.M. Office, State of Minnesota, Homestead Certificate, (Homestead Certificate - 1877).
3. Bowenharden2.FTW, Date of Import: Jun 25, 1999.
4. Bowenharden2.FTW.
5. Bowenharden2.FTW, Date of Import: Jun 25, 1999.
6. M.E. Chesebrough, Descendants of John Somerville, (Broderbund Family Archie #110, vol 2, Ed. 3; SS Records), "Electronic."
7. Brøderbund Family Archive #110, Vol. 2, Ed. 3, Social Security Records: U.S., SS Death Benefit Records, Surnames Beginning with S, Date of Import: May 12, 1996, Internal Ref. #1.112.3.72607.123
8. Brøderbund Family Archive #110, Vol. 2, Ed. 3, Social Security Records: U.S., SS Death Benefit Records, Surnames Beginning with S, Date of Import: May 12, 1996, Internal Ref. #1.112.3.72607.123
9. Bowenharden2.FTW.
