"New York State Census, 1865," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVNV-8YXP : 8 March 2021), Mary Mcgee in household of Thomas Mcgee, , Marcy, Oneida, New York, United States; citing Census, p. 32, citing multiple county Clerks; Warren and Lewis County Board of Supervisors; multiple counties in New York; Utica and East Hampton Public Libraries, New York.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MVG5-WJJ : accessed 3 April 2023), Mary Quinn in household of Francis A Quinn, Santa Clara, Santa Clara, California, United States; citing enumeration district (ED) ED 111, sheet 22A, family 43, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 106; FHL microfilm 1,374,119.
Find a Grave, database and images, memorial page for Mary Euphrasia McGee Quinn (27 Mar 1851–14 Jun 1925), Find A Grave: Memorial #148355823, citing St. Mary's Cemetery, Oakland, Alameda County, California, USA; Maintained by REHM (contributor 46985513).