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An experimental program at Antietam National Battlefield used contemporary sketches and photos, as well as modern remote sensing technology and design software, to study elements of the site. According to Stephen Potter, an archaeologist who participated in the program, the National Park Service used images from the 1860s, aerial photographs from the 1930s, and GIS and GPS systems to construct a data set for the area. Having established a set of geographic references, the Park Service then compared contemporary drawings and photographs with the modern landscape, using design and visualization software to supplement the work of archaeologists. The project determined the location of missing structures and physical features, opening the way for later examination by archaeologists.
. Historian Shae Davidson's research interests include public policy and the relationship between culture and civil society. His publications range from articles on industrial history to absurdist poetry.
