This collection contains over 37,000 35mm slides, 3,000 glass lantern slides and a small number of landscape architectural plans and drawings, all of which document the history of American gardens and landscapes. Garden files were compiled by Garden Club of America (GCA) members for most of the gardens included in the collection. These files may include information sheets, photocopied articles (from journals, newspapers, or books), planting lists, correspondence, brochures and other notes. 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.