who owned the philipsburg manor before the break up
Philipsburg Manor In 1779, Frederick Philipse III, a Loyalist, was attainted for treason along with his family. The manor was confiscated and sold at public auction, and the land was split between 287 buyers. The largest tract of land (about 750 acres (300 ha)), the Upper Mills, was passed to numerous owners until 1951, when it was acquired by Sleepy Hollow Restorations (now Historic Hudson Valley). Thanks to the philanthropy of John D. Rockefeller Jr., about 20 acres (8.1 ha) were restored as an historic site known as Philipsburg Manor.[1] The Lower Mills manor house, Philipse Manor Hall, served as Yonkers City Hall from 1872 until 1908.[3] Both houses became National Historic Landmarks on November 5, 1961[4][5] and are now house museums.