"Massachusetts Deaths, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:NWQQ-X45 : 10 March 2018), Clarence C. Kallock, 10 Feb 1889; citing Cambridge, Massachusetts, v 401 p 194, State Archives, Boston; FHL mic
"Massachusetts Deaths, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:NWQQ-X45 : 10 March 2018), Clarence C. Kallock, 10 Feb 1889; citing Cambridge, Massachusetts, v 401 p 194, State Archives, Boston; FHL mic