The M. Truman Fossum Floriculture Collection include Fossum's business and personal correspondence, as well as reports and publications related to marketing, horticulture, and the floriculture industry in the United States and abroad.

The Richard P. White Papers contain correspondence, brochures, newsletters, publications, subject files, and drafts relating to White's manuscript "A Century of Service: A History of the Nursery Industry Association of the United States."