Charles Donald “Don” Snow (1926-2018) was a geologist and author. In the early 20th century, Snow's family lived near the Utah quarry where Earl Douglass discovered dinosaur bones in 1909. This collection contains color photographs from the 1990s of the former family ranch and black-and-white copy prints of photographs of Neal and Snow family members.

The Mansfield M. Snow photograph collection contains portraits of Mansfield Snow, his wife and daughter, and various members of the Snow and Clarke families, as well as photographs of buildings in Brigham City, Utah and miscellaneous photographs.