"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCTJ-2T2 : 4 April 2020), Horace Pierce, Triangle, Broome, New York, United States; citing family 572, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
"New York State Census, 1855," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K63V-LGF : 13 March 2018), Horace Pairce, Triangle, Broome, New York, United States; citing p. , line #14, family #65, county clerk offices, New York; FHL microfilm 809,006.
"New York State Census, 1865," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVNJ-Q1JS : 10 March 2018), Horrace Pierce, , Marathon, Cortland, New York, United States; citing Census, p. 35, citing multiple county Clerks; Warren and Lewis County Board of Supervisors; multiple counties in New York; Utica and East Hampton Public Libraries, New York.
Find A Grave, database and images (https://www.findagrave.com : accessed 14 February 2020), memorial page for Horace Pierce (1806–20 Aug 1874), Find A Grave: Memorial #175516659, citing Marathon Village Cemetery, Marathon, Cortland County, New York, USA ; Maintained by Larry Wales (contributor 47374334) .
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