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Unsourced family tree handed down to Skip Magyar.
Giffen: Genealogic Family History Of Descendents Of Robert Giffen and Mary Bane Giffen: Settlers At Big Spring, Pa., in 1777, Removed To Wheeling, Virginia, 1787, J. W. Giffen D.D., - Central Pub. House – 1927, (p 106).
Find a Grave, database and images (www.findagrave.com/memorial/46258977/isabel-a.-giffin : accessed 01 July 2021), memorial page for Isabel A. McAllister Giffin (1833–8 Dec 1908), Find a Grave Memorial ID 46258977, citing Rock Hill Cemetery, Bellaire, Belmont County, Ohio, USA ; Maintained by Terry Magyar (contributor 47053508) .