Camp Leach used by Chemical Corps
Camp Leach, formerly known as the American University Experimental Station and Camp American University, was a World War I era  United States Army camp built by the Corps of Engineers on American University property in Washington, D.C. It was named in honor of Colonel Smith S. Leach, Corps of Engineers. The camp was established in 1917 for the organization of engineer units and subsequently used by the Chemical Warfare Service. Abandoned in January 1919, it was ordered salvaged.