The collection consists of materials relating to his work with research and production of small grains such as wheat, oats, and flax, and in particular the development of Hope Wheat. In addition, the collection contains biographical information about McFadden and his writings and speeches.
Photographs taken by Clav Snow while he attended South Dakota State College in the 1930s. Photographs are images of Hobo Day, Military Field Day Exercises, campus buildings, and friends.