The E.S. McFadden Papers document the career, research, and legacy of Edgar Sharp McFadden (1891–1956), a pioneering American plant breeder best known for developing Hope Wheat, the first variety resistant to stem rust. McFadden’s work in genetics and agronomy spanned South Dakota and Texas, and he contributed significantly to agricultural science through federal and academic research programs, including with the USDA and Texas A&M.

The collection spans McFadden’s professional life and includes research notebooks, writings, correspondence, photographs, honors, and biographical materials. Of particular note are research materials related to wheat breeding and rust resistance, including field data, experimental notes, and correspondence concerning Hope Wheat. Writings include published and unpublished scientific and popular articles, speeches, and autobiographical pieces. Also included are awards and certificates from scientific societies, clippings about McFadden’s achievements, and documentation of public recognition such as “McFadden Appreciation Day.” The papers provide insight into 20th-century advancements in crop improvement and agricultural science in the United States.