Scope and Content This collection (1917-1999) contains biographical information, correspondence, publications, and research files. Many of Hull's publications on farm machinery, safety, and structures are included. The bulk of the collection contains Hull's research and reference files, which includes information on structures and processing, farm safety, and power equipment and machinery. These files contain an assortment of materials including correspondence, manufacturer's product literature, agricultural...

Abstract Jay Brownlee Davidson was born February 15, 1880 in Nebraska. He joined the faculty of Iowa State College (University) as Assistant Professor (1905-1907) in charge of agricultural engineering. Aside from several years spent teaching in California (1915-1919), Davidson spent the next 50 years at Iowa State as Professor (1907-1956) and Head (1907-1946) of the Department of Agricultural Engineering. Davidson became internationally renowned as an expert on agricultural mechanization and worked...