"United States Census, 1850," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MD98-K97 : 22 December 2020), Betsey Taft in household of Asa P Taft, Oxford, Worcester, Massachusetts, United States; citing family , NARA microfilm publication (Washington, D.C.: National Archives and Records Administration, n.d.).
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MHFM-C1S : 19 February 2021), Betsey Taft in household of Asa W Taft, Auburn, Worcester, Massachusetts, United States; citing enumeration district ED 799, sheet 33C, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,254,562.
"Massachusetts, Town Clerk, Vital and Town Records, 1626-2001," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QG12-4SB1 : 2 March 2020), Otis Toft and Betsey Beals, 19 May 1811; citing Marriage, Upton, Worcester, Massachusetts, United States, Massachusetts Secretary of the Commonwealth, Boston; FHL microfilm 007011161.
"Massachusetts Deaths, 1841-1915, 1921-1924," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:N7LV-YLV : 2 March 2021), Betsey Bealstaft, 20 Mar 1883; citing Auburn, Worcester, Massachusetts, v 348 p 375, State Archives, Boston; FHL microfilm 960,225.