Robert 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 Run and Colonial Williamsburg. <p/>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.
