Olathe Urban Renewal Project (1965-1975): The Olathe Urban Renewal Project chronicles the plan undertaken by the Olathe Urban Renewal Agency and the community of Olathe to revitalize business and residential areas in Olathe.
Sunflower Army Ammunition Plant (1942-2003): The papers of the Sunflower Army Ammunition Plant document the plant's long production of Army ordnance and decades as a major employer in Johnson County and eastern Kansas. The plant manufactured Army ordnance during World War II, and the Korea and Vietnam conflicts