Thomas Mckean 1735-1817 Signer of the Declaration of Independence, member of the Continental Congress and Governor of Pennsylvania. D. S as Governor of Pennsylvania, 1p. folio on vellum, Philadelphia, Apr. 26, 1792, a partly-printed grant of a1, 099 acre tract named Catsworth to Robert Blackwell. Folds, otherwise quite fresh and clean with bold signature and seal intact.