Paul H. Merriman, owner of locomotive 4501, was equally at home in coat and tie (as here) or in overalls thick with grease. Merriman (1909-2004) had paid $5,000 for the locomotive, was a DuPont engineer in electronics research at Chattanooga, helped found the Tennessee Valley Railroad Museum, and was its president from 1961 to 1978. He deeded the locomotive to the museum in 1975. Earlier, he had been a professor at Duke University and an engineer at the Glenn L. Martin Company, Baltimore, Maryland. He attended the 4501's 25th anniversary events in 1991.