I researching the ancestry of James Fulton (b 1763, d 1823 Butler Co. Pa), I found the following deed info:
Deed Book S, Page 88
Dated Jany 19, 1808 Samuel Thompson & Elizabeth
Thompson his wife, late Elizabeth Gibb of North Huntingdon Tp,
Westmoreland Co Pa said Elizabeth being daughter of Samuel Gibb of
Hopewell Tp, Cumberland Co Pa Decd, Ack receipt of 30 from Hugh Gibb
Recorded Feby 20, 1808
[Margin note reads:] July 31, 1921 this is evidently the son of
Sam'l Thompson bro of G.G. father See Page 212 of Book No 4 JVT.
Several family histories indicate that Rev. Samuel Finley was a brother of Agnes Fulton nee Thompson. (See Wikipedia article on Rev. Samuel Finley, 5th Pres of what was to become Princeton Univ, and foster father of James Rush, signer of Decl. of Ind.
I am very curious if there is any connection between this Samuel Gibb, and the Gibbs of Yale Univ. Could it be that both families of preachers and chemists are related??
(There are claims from 1880's that James Fulton was a cousin of the inventor Robert Fulton, but I have not been able to verify these claims).