The treaty has not been authenticated, but the signing was immortalized in several works of art (in particular, Benjamin West's paintings) and was mentioned by the French author Voltaire.
Plants under that name were raised at the Morris Arboretum, Pennsylvania, Philadelphia, from grafts made in 1945 from a tree at Haverford College, itself a graft from the Shackamaxon Treaty Elm (felled by a storm in 1810) in what was later named Penn Treaty Park, Kensington, Pa.