Governor's mansion at Colonial Williamsburg
Henry Mercer and his dog Rollo
Fonthill, home of Henry Mercer in Doylestown
Mercer, a renaissance man from Doylestown who was at once an antiquarian, a historian, an archaeologist, and the maker of ceramic tiles, including the decorative tiles installed in the Pennsylvania State Capitol, conducted extensive excavations at the site of Lower Black’s Eddy site. Initially, he was motivated to support Abbott’s claims. He had written a book in 1885 (the Lenape Stone, or the Indian and the Mammoth) supporting the purported antiquity of the Lenape Stone which was discovered in New Jersey. This now discredited artifact is a gorget, depicting a mammoth and Indian figures suggesting that both existed at the same time in the New World.
The Lenape Stone
However, after his excavations at Lower Blacks Eddy, he changed his mind. Through his excavations at this site, he was able to link the technology used to manufacture the “turtlebacks” to the finished and common styles of Indian projectile points thus demonstrating the post-Pleistocene age of the these artifacts. Ironically, it took another 35 years for archaeologists to prove the Pleistocene age of Indians in the New World.