found: His Pan American visions, c1986:t.p. (Mark T. Gilderhus) t.p. verso (authority on diplomatic & military history of the 20th century; prof., U.S. history, Colo. St. Univ.)
found: LC data base, 5/29/86(hdg.: Gilderhus, Mark T.)
found: His History and historians, c1987:CIP t.p. (Mark T. Gilderhus) data sheet (b. 1941)
found: The chronicle of higher education, Mar. 6, 2015:page A26 (Mark Gilderhus; d. Jan. 22, 2015, Fort Collins, Colo.; professor of U.S. diplomatic history at Colorado State University)