↑ "Connecticut, Vital Records, Prior to 1850," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QPMH-1BRG : 21 September 2019), John Griswold, ; citing Birth, , Compiled by Lucius A. and Lucius B. Barbour, housed at State Library, Hartford, Connecticut; FHL microfilm 008272232.
↑Find a Grave, database and images (https://www.findagrave.com : accessed 9 January 2021), memorial page for John Griswold (3 Nov 1747–21 Apr 1825), Find A Grave: Memorial #19914502, citing Spencertown Cemetery, Spencertown, Columbia County, New York, USA ; Maintained by Elsie Scharpf Saar (contributor 46486625) .