"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M9QX-YPH : accessed 12 April 2020), Cornelius Murphy in household of Michael Murphy, Danbury city Ward 4, Fairfield, Connecticut, United States; citing enumeration district (ED) 64, sheet 16A, family 301, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,133.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MKK5-M8F : accessed 12 April 2020), Cornelius J Murphy in household of Michael F Murphy, Danbury Ward 4, Fairfield, Connecticut, United States; citing enumeration district (ED) ED 71, sheet 18B, family 379, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 129; FHL microfilm 1,374,142.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCNL-G7P : accessed 12 April 2020), Cornelius Murphy in household of James J Hyland, Waterbury Ward 2, New Haven, Connecticut, United States; citing ED 440, sheet 6A, line 37, family 122, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 194; FHL microfilm 1,820,194.