"Canada, Ontario Births, 1869-1912," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VNLL-GLF : 2 March 2021), George William Blackstock, 09 Oct 1871; citing Birth, Wallace, Perth, Ontario, Canada, citing Archives of Ontario, Toronto; FHL microfilm 1,844,887.
"United States Census, 1880," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MZDN-YWX : 14 January 2022), George Blackstock in household of Mary Blackstock, Rochester, Monroe, New York, United States; citing enumeration district , sheet , NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm .
"New York State Census, 1905," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MKM4-JHQ : 8 March 2021), George W Blackstock, Rochester, Ward 11, E.D. 03, Monroe, New York; citing p. , line 6, various county clerk offices, New York; FHL microfilm 833,787.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M5MJ-XW3 : accessed 23 February 2023), W George Blackstock, Rochester Ward 11, Monroe, New York, United States; citing enumeration district (ED) ED 111, sheet 2A, family 39, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 991; FHL microfilm 1,375,004.
"United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:X78F-KZH : accessed 23 February 2023), George W Blackstock, Rochester, Monroe, New York, United States; citing enumeration district (ED) ED 197, sheet 27A, line 42, family 338, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1455; FHL microfilm 2,341,190.
"United States Census, 1940", database with images, FamilySearch (ark:/61903/1:1:K316-3S5 : Sun Jan 01 21:42:11 UTC 2023), Entry for William G Blackstock and Willard S Blackstock, 1940.
"United States Border Crossings from Canada to United States, 1895-1956", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XGSY-TPX : 14 November 2019), William George Blackstock, 1945.
"New York State Health Department, Genealogical Research Death Index, 1957-1963," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:2CHP-7GH : 11 February 2018), William G Blackstock, 11 Jun 1959; citing Death, Rochester, Monroe, New York, file #42032, New York State Department of Health—Vital Records Section, Albany.
Find a Grave, database and images, memorial page for William George Blackstock (Oct 1871–11 Jul 1959), Find A Grave: Memorial #138394967, citing Mount Hope Cemetery, Rochester, Monroe County, New York, USA; Maintained by Carl R Wolff (contributor 48161895).
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