Description: Papers of Karl J. T. Ekblaw '09, M.S. '13 (1884-1947), assistant (1909-11), instructor (1911-13) and associate (1913-17) in agricultural engineering; president of the Alumni Association (1935-36) and the University of Illinois Foundation (1937-1938); professor of agricultural engineering at Kansas State University (1917-19); editor and counselor for the National Farm Power Company (1919-23); engineer and educational director of the Portland Cement Association (1923-28) and vice president of the Frank B. White Advertising Company (1928-30). The papers include photographs and sales and maintenance literature on tractors, trucks, harvesting equipment, concrete construction, electrification, farm buildings, agricultural implements, water supply, tractor tests (1918-19) and travel.