Pennsylvania Historical and Museum Commission plaque for the DeTurk House, built in 1767 by John de Turk, son of Isaac de Turk, a Huguenot who settled in Berks County in 1712 and was one of a number of French Protestants who were pioneers in this part of Berks County.
Plan of Fort Harmar, located at the confluence of the Muskigum River and Ohio River near the town of Marietta, Ohio. Built c. 1785. Photo courtesy of the Ohio Historical Society.