Robert DunkerlyRobert M. Dunkerly is a park ranger at Kings Mountain National Military Park, where he is a historic weapons safety officer. He has worked at several other historic sites, including Gettysburg, Stones River, Jamestown, Washington's Birthplace, Bushy un and Colonial Williamsburg.

Eric K. Williams serves as the chief park ranger and historian at Ninety Six National Historic Site. He is also a historic weapons safety officer, and wrote the National Park Service manual for swivel gun demonstrations. Read More Read Less