Herny S. Rothrock (1906-1986) was a DuPont research chemist. In 1930, he joined the staff of the Experimental Station of E.I. du Pont de Nemours & Company. He obtained fifty-six patents, chiefly in the field of polymer chemistry and served ten years at liaison manager in the Central Research Department, retiring in 1971. This collection consists primarily of photos relating to DuPont's Experimental Station in Wilmington, Delaware. There are group photos of new employees in the Central Research Department, committees and conferences and press release photos from the 1964 New York World's Fair.