The Moffatt-Ladd House and Garden (1763) is a National Historic Landmark and has been open to the public as a historic house museum since 1912. One of America's finest Georgian mansions, the house was built for merchant John Moffatt between 1760 and 1763. During the Revolution, it was the home of General William Whipple, one of New Hampshire's three signers of the Declaration of Independence and his wife Katharine Moffatt Whipple. In 1817 the house passed to John Moffatt's great granddaughter, Maria Tufton Haven Ladd. Her son, Alexander Hamilton Ladd, lived in the house from 1862 until his death in 1900. The house is furnished to showcase its original features and to reflect its use as a private home from 1763 through 1900.