Seaman Asahel KnappBorn 16 Dec 1833; died 1 Apr 1911 at age 77.American agriculturist who originated originated the method in which an expert demonstrates, farm by farm, new agricultural discoveries and technologies. He introduced improved methods of farming into Louisiana, spurred the development of rice culture in the Southwest, demonstrated methods for curbing the boll weevil in Texas, and inaugurated a federal program of farm demonstrations throughout the South. Knapp's legacy was to bring progressive agricultural methods to the American farmer. An agrarian reformer, to change the pattern of society for the benefit of mankind, he organized a system of county farm and home demonstration agents and boys and girls clubs from which developed the U.S. Cooperative Extension Service.