The American Conifer Society Records include correspondence, ACS Bulletin materials, Board of Directors' meeting minutes, audiotapes of Board of Directors' meetings, financial records, incorporation documents, by-laws and policies, contracts, ACS national meetings materials, members' plant inventories, materials related to the slide program "A Brief Look at Garden Conifers," ACS Central Region meeting files, locations of ACS national meetings (1983-2001), and membership directories.

The Nursery Associations Records Collection consists of the letterpress book of the Western Association of Wholesale Nurserymen (1886-1896); the account book of the American Association of Propagating Nurserymen (1926-1933); the record book of the Pacific Coast Nursery Association (1937-1938); treasury records of the Council of Eastern Nurserymen (1936-1938); and files of the American Horticultural Council.

The Society of American Florists Records and Book Collection consists of both organizational records and bound volumes. The Society of American Florists (SAF) Records cover the period from 1894 to 1993, and contain proceedings, meeting minutes, correspondence, memoranda, publications, photographs, and scrapbooks. The SAF Book Collection consists of over 200 volumes, including monographs and bound serials from 1793 to 1990.