This collection consists of the correspondence of William Henry Rasche and John Rolfe Castleman, former professors and heads of the department. The collection includes correspondence with VPI Presidents Joseph Eggleston, Julian Burruss, John Hutcheson, and Walter Newman (1913-1962); correspondence with Vice Presidents Walter Newman, C. Clement French, and Louis Pardue (1946-1957); correspondence with Treasurers Charles Wade, J. H. Taft, and J. B. Fogleman (1918-1945); correspondence with Engineering Deans L. S. Randolph, S. R. Pritchard, Earle B. Norris, and J. W. Whittemore (1913-1959); correspondence with faculty (1919-1932, 1937-1946); and correspondence with other universities (1940-1944). Additional items concern the Intercollegiate Rankine Memorial Movement (1939-1940) and the bust of William Rankine (one of the founders of modern scientific engineering) presented by the class of 1902 to the University in 1940.