"United States Census, 1850," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:M685-529 : 19 December 2020), Margaret A E Dean in household of James E P Dean, New Haven, New Haven, Connecticut, 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://www.familysearch.org/ark:/61903/1:1:MFCT-CM1 : 12 November 2020), Margaret Trowbridge, New Haven, New Haven, Connecticut, United States; citing enumeration district ED 72, sheet 315A, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,254,105.
"United States Census, 1900," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:M97Q-LMS : accessed 10 February 2021), May Trowbridge, United States; citing enumeration district (ED) 342, sheet 4A, family 58, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,144.