Abstract The Cooperative Dayton History Project was funded by a National Science Foundation grant in 1969 to identify and locate the widely scattered and unindexed business, church, and other institutional records which document the history of Dayton, Ohio from 1850-1950. This collection consists of papers and records gathered to prepare a preliminary inventory of available historical sources and includes pamphlets, brochures, correspondence, clippings, notes, and inventory forms. The project...