On my recent trip to Pennsylvania, I also visited two sites in the Allentown area. The first was Trout Hall, the city’s oldest house, built in 1770 as a summer home for James Allen, son of Allentown’s founder, William Allen. Allen was a loyalist during the Revolutionary War, which led to a lot of trouble for him, as you can imagine. There’s a pdf document online with more info about the house. On the tour, visitors can hear all about Allen and his travails and also visit the modern Lehigh County Historical Society museum next door. The house had to be restored because it was later part of Muhlenberg College and got attached to other structures that were later demolished.