"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MC1G-6YR : 4 April 2020), David Blakeslee, Addison, Steuben, New York, United States; citing family 424, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
Find a Grave, database and images (https://www.findagrave.com : accessed 02 December 2020), memorial page for David Blakeslee (7 Feb 1766–6 Dec 1851), Find a Grave Memorial no. 132910226, citing Maple Cemetery, Addison, Steuben County, New York, USA ; Maintained by Rich Fedoush (contributor 46805205) .
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