I keep reading your posts. You have good information. It agress with mine (ha, ha).
Perhaps we are both referencing the Giffen Family History, written by Rev. J. W. Giffin, D.D. 1927 ?
You mentioned John Giffen (1842- 1911)He married Margaret McAllister b-1847. All of the children of this family belong to the Rock Hill Presbyterian Church.
John was the son of George Giffen, son of Robert and Mary Bane Giffen.
I grew up near close to Rock Hill. I'm originally from Shadyside, Ohio.
My mother is June Giffen, daughter of William Giffin, b-1878. Grandma was Linnie Hepburn. Residence at Shadyside, Belmont County, OH. ref. p. 112
We're descendents of George Giffen, b 1779, near the Big Spring, Cumberland County, PA. and died in Belmont County, OH 1839.
Who are you and what branch do you belong to ? Please advise.