The Post Road, known in these days as Broadway, follows the eastern edge of the Mosholu swamp to Van Cortlandt Park, through what is called the Vale of Yonkers. Here is Vault Hill, one of the points selected by Washington on which to make a display for the benefit of the British while he quietly led his main army south for the operations against Cornwallis. On a clear day the hill is in plain view from Manhattan Island, and the camp fires and general indications of activity on its summit helped materially in the scheme to deceive the enemy. The hill has its name from the fact that it was used as a burial ground by the early generations of the Van Cortlandt family. The property was sold in 1699 by Hon. Frederick Philipse to his son-in-law, Jacobus Van Cortlandt (a brother of Stephanus Van Cortlandt of Cortlandt), and the mansion was erected by Frederick Van Cortlandt in 1748. Northeast of it is situated Indian Field, memorable as the scene of an engagement between the British and the Stockbridge Indians, resulting in the practical annihilation of the latter. [Sidenote: _YONKERS._] The road shortly becomes a village street and so continues into Yonkers. In 1646 the Indian sachem Tacharew granted the land to Adrian Von der Donck, the first lawyer of New Netherland. The Indians called it Nap-pe-cha-mack, the "rapid water settlement," the "settlement" being located about the mouth of the stream now known as Sawmill River. The Dutch called their settlement Younkers, Younckers, Jonkers or Yonkers, derived from Jonkheer, a common name for the male heir of a Dutch family. The old Philipse manor house, now Yonkers's City Hall, was erected about 1682, the present front being added in 1745. In its palmy days it is said to have sheltered a retinue of thirty white and twenty colored servants. Here was born Mary Philipse, July 3, 1730, the heroine of Cooper's "Spy," and the girl who is said to have refused Washington. In January, 1758, she married Col. Roger Morris. Tradition tells how, amid the splendors of the wedding feast, a tall Indian, wrapped in his scarlet blanket, suddenly appeared in the doorway and solemnly predicted that the family possessions should pass from its control "When the eagle shall despoil the lion of his mane." The mystery was explained later when the property was confiscated because of the royalist leanings of the family. The site of Pomona Hall, burned some twenty years ago, where Burr took refuge for a time after the Hamilton duel, is now occupied by a modern public school. It bordered the Post Road toward the northern edge of the village, commanding a fine view of the Hudson.