"United States Census, 1790," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XHKG-NSP : accessed 17 April 2019), Peter Slater, Worcester, Worcester, Massachusetts, United States; citing p. 659, NARA microfilm publication M637, (Washington D.C.: National Archives and Records Administration, n.d.), roll 4; FHL microfilm 568,144.
"Massachusetts Deaths, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:N7V3-86V : 10 March 2018), Peter Slater in entry for Samuel Slater, 24 Aug 1860; citing Worcester, Massachusetts, v 140 p 270, State Archives, Boston; FHL microfilm 960,177.
"Massachusetts Deaths, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:N7Y7-W8K : 10 March 2018), Peter Slater in entry for Sarah R Howe, 30 Apr 1872; citing Worcester, Massachusetts, v 249 p 398, State Archives, Boston; FHL microfilm 960,201.
Find A Grave, database and images (https://www.findagrave.com : accessed 20 December 2018), memorial page for Capt Peter Slater (2 May 1760–13 Oct 1831), Find A Grave: Memorial #67124230, citing Hope Cemetery, Worcester, Worcester County, Massachusetts, USA ; Maintained by Andrew Kauffman (contributor 47464204) . reinterrment from Pine Street Burial Ground
Daughters of the American Revolution, DAR Genealogical Research Databases, database online, (http://www.dar.org/), "Record of Peter Slater", Ancestor # A105011.
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