"Massachusetts Marriages, 1695-1910," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:FC8X-BH7 : 4 December 2014), John A. Hanson and Mary L. Clarke, 28 Sep 1858; citing reference ; FHL microfilm 741,319.
"United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MDQ7-W4Z : 17 October 2014), John A Hanson, Massachusetts, United States; citing p. 138, family 1052, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 552,136.
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