I've been to Shawnee (on the Delaware) many times and never fail to bemoan what was lost over time as much of Tillinghast's original design has been completely lost when the course went from 18 to 27 holes in the 1960s. Very few of the holes are original although a few of the most memorable are still there, and all of the best greens on the property are indeed originals.
What is today's 8th hole on the "Blue nine" was the original Tillinghast 17th, although today's is a truncated version playing as a medium length par four from a tee to the right of the original "Binnikill" green, the famous par three which required a shot over part of the Delaware River.
However, the original tee played from left of that green, back behind it, such that a drive on 17 required a tee shot right over the Binnikill. Here is a picture taken from one of Rick and Stu Wolffe and Bob Trebus's books on Tilly, "The Course Beautiful".
Yesterday my wife and I had a little time to kill before dinner so we went in search of the original tee, which during the season is usually covered in thick growth. We were surprised to find that it still looked so intact, and in fact, even playable today.
Some time back there was talk that Tom Doak might be hired to restore the course but I believe the owner had some setbacks so I'm not sure if that is still possible. It certainly has potential based on the original routing and what still survives gives a good idea of the original grand scale of the course.