Bruce F. Thompson No description specified. 1-2 (2 Records) Documents Phase I Survey For Submerged Archaeological Resources On the St. Mary's River, St. Mary's County, Maryland (1995) "The Terrible Calamity on the Lower Potomac" - An Historical and Archaeological Assessment of the Shipwreck U.S.S. Tulip (18ST644), Potomac River, St. Mary's County, Maryland (1998)