info about one of payseur proxies, Pinchot
"In 1963, President John F. Kennedy accepted the family's summer retreat house, Grey Towers National Historic Site, which his son Dr. Gifford Bryce Pinchot and the Pinchot family donated to the U.S. Forest Service. It remains the only National Historic Landmark operated by that federal agency." https://en.wikipedia.org/wiki/Gifford_Pinchot