Source: Find a Grave, database and images (https://www.findagrave.com : accessed 19 March 2021), memorial page for Griffith John Sr. (1683–29 Jun 1778), Find a Grave Memorial no. 63024187, citing Uwchlan Friends Burial Ground, Uwchlan Township, Chester County, Pennsylvania, USA ; Maintained by myta (contributor 47351841) . (S1255)
