The Robert M. Fletcher Collection contains 268 35mm color slides documenting Southern California gardens designed by landscape architect Robert M. Fletcher.

The papers of Southern California architectural historian, critic, and writer Esther McCoy measure 44.4 linear feet and date from 1876 to 1990 (bulk 1938-1989). The collection documents McCoy's career, as well as her family and personal life through biographical material, extensive correspondence, personal and professional writings, project files, Southern California architects' files, clippings and other printed material, a large collection of photographs and slides, and taped interviews of Southern California modern architects.

This finding aid was digitized with funds generously provided by the Smithsonian Institution Women’s Committee.

The papers of technical artist, fabricator, and conservator Jack Brogan measure 2.25 linear feet and date from 1968 to 2016 with the bulk of the collection dating from 1971 to 2009. The collection documents Brogan's collaboration with many artists associated with Southern California Light and Space art to help realize their ideas. Papers include biographical material, project files, printed material, photographic material, and artwork.

The papers of California artist, curator, and educator Bruria Finkel measure 12.1 linear feet and date from 1953 to 2014. This collection includes biographical materials, correspondence, writings, project files, professional records, exhibition files, artists' files, personal business records, printed materials, photographic materials, sound and video cassettes, and numerous electronic discs.

The papers of Los Angeles painters and art instructors Lorser Feitelson and Helen Lundeberg measure 15.6 linear feet and date from circa 1890s to 2002. The papers document the careers of the two artists, including their establishment of the Post-surrealism movement in southern California, their work for federal arts programs, and their later abstract artwork. Found are biographical materials, correspondence, personal business records, exhibition files, printed materials, photographs, and one sound recording.

This collection contains over 37,000 35mm slides, 3,000 glass lantern slides and garden files that may include descriptive information, photocopied articles (from journals, newspapers, or books), planting lists, correspondence, brochures, landscape plans and drawings. Garden files were compiled by Garden Club of America (GCA) members for most of the gardens included in the collection. Some gardens have been photographed over the course of several decades; others only have images from a single point in time. In addition to images of American gardens, there are glass lantern slides of the New York Flower Show (1941-1951) and trips that GCA members took to other countries, including Mexico (1937), Italy, Spain, Japan (1935), France (1936), England (1929), and Scotland. A number of the slides are copies of historic images from outside repositories including horticultural and historical societies or from horticultural books and publications. The GCA made a concerted effort in the mid-1980s to acquire these images in order to increase its documentation of American garden history. Because of copyright considerations, use of these particular images may be restricted.

The Ken Druse Garden Photography Collection contains approximately 45,000 film transparency and 35mm slide images, dating from 1978 to 2005, of gardens, garden features, and flora photographed by garden writer and photographer Ken Druse. The photographic images document numerous private and public gardens throughout the United States and a few in Canada. Many have appeared in Druse's own books and articles as well as those by other writers. Approximately half of the collection is arranged according to specific garden, the other half by garden feature. A small portion of the collection consists of slide lectures given by Druse. Some images are identified with general captions and dates. Images documenting specific gardens are sometimes accompanied by handwritten notes, garden descriptions, and articles. Annotations appearing on certain images indicate the publication in which they appeared. The collection includes 'outtakes' or bracketed images that give insight into Druse's photo shooting process.

The Historic Gardens Stereograph Collection includes 807 stereographs that depict various public gardens, parks, and tourist attractions throughout the United States, with an emphasis on features related to horticulture and landscape design, including plants, garden furniture, and topiaries. Most, but not all views, show exterior features. A number of stereographs indicate the photography studio on the recto or verso, as well as a series or image number. Many include a brief caption; some include a lengthy description on the verso. Few are dated.

The Eleanor Weller Collection dates from circa 1978-2006 and consists of documentation and research files relating to the Garden Club of America's Slide Library of Notable American Parks and Gardens (later donated to the Smithsonian Institution as the Garden Club of America Collection) and the book, The Golden Age of American Gardens: Proud Owners, Private Estates, 1890-1940, co-written by Weller, as well as thousands of photographic images of historic and contemporary gardens compiled or taken by Weller. Materials include correspondence, research notes, clippings, brochures, lecture scripts, photocopied images from archival repositories, and original and duplicate 35mm slides.