The Chamber of Commerce of the United States has matured into the largest lobbying group in Washington. Formed in April of 1912 at the request of President William Howard Taft (1857-1930), the Chamber's commitment to be the voice of business is well documented. The records contain articles of incorporation, bylaws, resolutions and minutes of annual meetings. Presentations to Congress, speeches by members, and conferences hosted by the Chamber. Numerous publications give insight into the concerns facing American businesses in the twentieth and twenty-first centuries.

Frederick G. Singer (1897-1971) was a manager for the Tariff Division of the E.I. du Pont de Nemours & Company's Development Department, working out of the foreign office in Paris, France. E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont Company. This small collection consists mostly of organizational charts and lists of officers and products of the DuPont Company and the Grasselli Chemical Company, as well as the products of their competitors, between 1936 and 1937.