"United States Census, 1870," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MD35-SR2 : 12 April 2016), Sophronia Dewing, Massachusetts, United States; citing p. 121, family 839, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 552,144.
"Massachusetts Deaths, 1841-1915," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:NWX1-CFN : 11 March 2018), Louise Dewing, 08 Apr 1903; citing Cambridge, Massachusetts, v 540 cn 497, State Archives, Boston; FHL microfilm 2,057,764.
"Massachusetts Deaths, 1841-1915," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:NWDR-J8F : 11 March 2018), Paul F. Dewing, 14 Mar 1903; citing Boston, Massachusetts, v 541 cn 2420, State Archives, Boston; FHL microfilm 2,057,764.