This collection documents the personal and professional life of Benton Otto Wheeley, an engineer, philanthropist, and venture capitalist. Divided into two series, the first, Personal Material, contains correspondence, financial information, speeches, proposals, reading material, and other documents relating to Wheeley's philanthropic and personal life. The second, Professional Material, contains documentation of Wheeley's time at Koppers, Inc. (1942-1984); business proposals, photographs, stock information, and other documentation of his professional general investments; and deeds, financial information, plats, and floor plans of his real estate investments.