Melissa Swanson, Naval History and Heritage Command Conservator, uses a scrub brush to remove lichens growing on a U.S. Navy VC-4 memorial marker, located near the main gate of the 177th Fighter Wing of the New Jersey Air National Guard in Egg Harbor Township, N.J., on July 20, 2016. The monument, erected in May 1994 by the Association of The Composite Squadron Four Nightcappers, pays tribute to the members of the VC-4 Squadron based at Naval Air Station Atlantic City from September 1948 to May 1958 who gave the ultimate sacrifice. Swanson, based out of Richmond, Virginia, earned an undergraduate degree in art history and anthropology from Wheaton College in Norton, Massachusetts and graduated from Columbia University in New York with a Master’s of Science in Historic Preservation, with a specialty in materials conservation, focusing on working on metals, woods and stone. (U.S. Air National Guard photo by Master Sgt. Andrew J. Moseley/ Released)