Martin Harry served as a Sergeant guarding prisoners here during the Revolutionary War under Captain John Kershner. The fort's exterior lines are 355 feet from bastion point to bastion point. The fortification is one of the largest built by English conlonists in North America. The stone wall is about 18 feet high. At least three major buildings originally stood inside the wall.
The fort was started in 1756 at the time of the French and Indian War. There is a fair amount of information about the fort on the internet. The pictures I have are from reinactments at the Fort. Someday it would be interesting to take a family trip to see a reinactment.
This is a sketch titled "Ruins of Fort Frederick, Washington Co., Maryland July 24, 1858".