Louisville, Kentucky native and member of the well-known du Pont Family. He was a noted inventor, businessman, and labor and contract arbitrator whose career took him and his family from Louisville to St. Louis, Detroit, and Cleveland. Ethel Bidermann du Pont was his daughter. The papers are concentrated in the years 1900-1915, years he spent in Cleveland, Ohio. The papers contain newspaper clippings concerning his career, arbitration negotiations, and Thomas Loftin Johnson, 1900-1960; periodicals (primarily Cleveland political and city news) and pamphlets of a business, biographical and technical nature; photographs; blueprints regarding research and inventions du Pont worked on; patents for his inventions; legal material; business correspondence, 1907-1915; arbitration negotiation material involving Cleveland and Cleveland street railway companies; and utilities research. The collection contains abundant information on the political and transportation systems of early 20th century Cleveland