The collection includes minutes, reports, notes, program information, newspaper clippings, and photographs from the Delphinium Garden Club of Dayton, Ohio. These items were collected by members of the Delphinium Garden Club of Dayton and document the organizations history, activity, and community involvement from its creation in 1931 until 2012. The club is still active in the community today.

Katharine Houk Talbott founded the Garden Club of Dayton in 1922. The Club's goal is to promote and encourage the beautification of not only their privately owned gardens, but also the gardens and environment of Oakwood, Ohio and the surrounding Dayton area. This collection contains scrapbooks, photographs, publications, as well as information on community projects, and an administrative/organizational series.

Consists of correspondence, reports, clippings, speeches, memorandums, photographs and printed materials reflecting Thompson's wide ranging interest in education, politics, environmental and social problems, historic preservation and journalism. Also includes an oral history with Sam Zehrung about his life and great gardens of Dayton, Ohio.