July 1931. "Brigadier General Robert H. Dunlap," by Sgt. Major C. B. Proctor, The Leatherneck, v. 14, no. 7, July 1931, p. 7.
May 24, 1931. Letter of condolence from leading citizens of Ocotal to Mistress Robert H. Dunlap. Signed by Octavio Lovo, José Francisco Moncada, Charlos Chamorro Ch., J. Pastor Lovo.
Col charles dunlaps essay Research paper Academic Service
December 21, 1928. "Recommendation that Col. R. H. Dunlap, U.S.M.C. be promoted to rank of Brigadier General," from Commanding General Logan Feland, Managua, to the Major General Commandant, USMC, Washington D.C.