son, Nelson, to buy a site along the East River in New York City, which was subsequently donated for the construction of the UN Headquarters. Among guests hosted by Nelson and his brother David have been American Presidents Lyndon B. Johnson, Richard M. Nixon, Gerald Ford, and Ronald Reagan, and their wives. Other notable visitors have included United Nations Secretary-General Kofi Annan, President of the Republic of South Africa Nelson Mandela, Shah of Iran Mohammad Reza Pahlavi, King Hussein of Jordan, President Anwar Sadat of Egypt, and Lord Mountbatten of Burma of the United Kingdom. , 10 or so Rockefeller families lived within the estate, in the central compound and beyond. Much land has been donated over the decades to New York State, including the Rockefeller State Park Preserve, and is open to the public for horseback riding, biking, and jogging. Bill Clinton, who lives just north of the estate, in Chappaqua, has taken regular runs in the State Park. Residences Within the park: "Hawes House", home of Nelson Rockefeller "Kent House", home of Laurance Rockefeller Outside the park: "Abeyton Lodge", home of John D. Rockefeller Jr., demolished when he occupied Kykuit after his father's death. "Fieldwood Farm", home of John D. Rockefeller III. "Hillcrest", a Rockefeller University property, formerly the mansion built for Martha Baird Rockefeller, second wife of John D. Rockefeller Jr., and current location of the 3-story underground bunker housing the Rockefeller Archive Center "Hudson Pines", home of David Rockefeller, just north of the Park (), originally built for and occupied by his only sister, Abby "Hunting Lodge", second home of Nelson "Rockwood Hall", originally the property of John D. Rockefeller Sr.'s, brother William Rockefeller. It is currently part of the Rockefeller State Park Preserve. Notable outbuildings The Pocantico Conference Center of the Rockefeller Brothers Fund (RBF), in the Park, where there are regular conferences. Originally the "Coach Barn", a three-story complex ultimately redesigned and completed during 1913–14, in heavy stone from the local area, it was the first new structure built on the estate. It is three times the size of the Kykuit mansion. It still houses an impressive collection of horse-drawn carriages, and an equally noteworthy collection of 12 family-owned vintage cars for public viewing, graphically illustrating the development of automotive design from the early to the mid-twentieth century. In 1994, with funding from David Rockefeller and brother Laurance, its lower floor was converted by