Contains 26 reels of microfilm with positive images and 26 reels of microfilm with negative images of the same materials. The microfilm include copies of a biography, correspondence, certificates, diaries, photographs, and articles. Also included are paper copies of articles, pamphlets, and a map. The materials relate to Blom's research on Mayan archaeology and his expeditions to Mexico.

Research notes, photocopies of drawings and photographs, a script, articles, correspondence, and archaeological site reports. The materials relate to Folsom's research on Indians of North America including antiquities and arrow heads, primarily in the American Southwest.