Summerseat is an 18th century Georgian manor house that was saved from dereliction and decay twice in the 20th century by the good citizens of Morrisville. Summerseat was not only the headquarters of General George Washington for a week in December 1776, but was also owned by four prominent 18th century Americans: Adam Hoops, Thomas Barclay, Robert Morris, and George Clymer. This volume discusses: Summerseat in History, Summerseat the House, and its first two owners, Hoops and Barclay. Appendices: Adam Hoops and Benjamin West; Summerseat Inventory; Transcriptions of Adam Hoop’s Properties; Summerseat in the 20th Century; and Mapping Summerseat. Illustrations.