The Katherine D. Jones collection consists of primarily of materials Jones used for her teaching and research. It includes correspondence, field notes, course materials, lists of plants, papers on botanical subjects by Jones and others (including Harry Shepherd), pamphlets on flowers and vines, and articles on plant ecology. The bulk of the collection consists of notebooks centered on garden subjects, field trips, site visits, and plant research. It is difficult to distinguish her teaching notes from her research notes as it appears that in many cases they were thoroughly integrated. The integrity of the notebooks was maintained during refoldering and the the folder titles were taken from the notebooks. The distinction between trips and visits was hers. It may be that trips were taken with students and visits to locations throughout California were taken for her research. Arranged by subject and location, they contain detailed notes on the horticulture of particular sites, sometimes including course material, clippings, plant lists, interviews, and photographs. Her notes for visits to Santa Barbara include discussions she had with Lockwood de Forest. Subjects include files on English gardens and U.S. colonial gardens, Golden Gate Park, the Panama Pacific International Exposition (1915), the Golden Gate International Exposition (1939), and the Blake/Symmes Garden in Kensington CA. The collection also includes photographs, plant cards, and extensive research files on vines.