University of Dayton

The collection documents the activities and administrative records of the Dayton Chapter of the American Guild of Organists. The collection includes scrapbooks, members' directories, programs, monthly newsletters, meeting minutes, and treasurers' reports.

William F. Patterson, a prominent commercial photographer in the Dayton area, has been photographing the work of local architects, businesses, and events since the 1960s. This collection includes approximately 20,000 negatives, slides, transparencies, and photographs taken by Patterson for commercial clients and placement in books, advertisements, catalogs, and brochures. Patterson's work also includes approximately 10,000 images from his travels throughout Europe and North America.