Insect and Rodent Control Unit, Corps of Engineers. Left to Right: Lt. U.D. Reed, in charge, Insect and Rodent Control, O.C.E. Mr. D.B. Whelan, Entomologist, Headquarters, Seventh Service Command. Dr. H.H. Shepard, Assistant, Insect and Rodent Control O.C.E. Mr. S.S. Easter, Entomologist, Headquarters, Third Service Command. Dr. G.F. Knowlton, Entomologist, Headquarters, Ninth Service Command. Dr. E.M. Searls, Entomologist, Headquarters, Sixth Service Command. Lt. L.C. Truman, Entomologist, Headquarters, Eighth Service Command. Mr. J.M. LeCato, Entomologist, Headquarters, First Service Command. Mr. A.W. Morrill, Jr. Entomologist, Headquarters, Fourth Service Command.