Correspondence, memoranda, notes, reports, speech files, engagement books, contracts, calendars, press releases, and publications, relating to Webb's service as director of the Bureau of the Budget (1946-1949), under secretary of state (1949-1952), and administrator of National Aeronautics and Space Administration (1961-1968), and service on various government and non-government committees and commissions; together with personal correspondence and business files. Includes material relating to Committee for Economic Development, Frontiers of Science Foundation of Oklahoma, General Accounting Office, George Washington University Board of Trustees, Meridian House Foundation, Municipal Manpower Commission, National Advisory Cancer Council, National Aeronautic Association, Oak Ridge Institute for Nuclear Studies, President's Committee to Study the U.S. Military Assistance Program, and Smithsonian Institution.