National Geographic Society
575 Wandsworth Road, London
Shaw's Corner, Hertfordshire
National Geographic Society (U.S.). Cartographic Division
United States. Army. American Forces in Germany, 1918-1923
Sissinghurst Castle Garden, Kent
National Geographic Book Service
Greys Court, Oxfordshire
National Geographic Society (Washington, D.C.)
Tyntesfield, North Somerset
National Geographic Society (U.S.)
Joel Tyler Headley (1`813-1897)
Calke Abbey, Derbyshire
International Commission to Inquire into the Causes and Conduct of the Balkan Wars
Oxburgh Hall, Norfolk
Lyme, Cheshire
Wightwick Manor, West Midlands
United States Information Service
Louis Prang ( Wrocław, Poland 1824 - Los Angeles 1909)
Chartwell, Kent
Morton, Terry B
Soley, James Russell, 1850-1911
Dunham Massey, Cheshire
Charles Lee Dearing (1903 - 1972)
Washington, D.C
Greenway, Devon
Thomas Wilson (1832 - 1902)
Donald E. Herdeck (1924-2005)
Fenton House, London
Washington D.C
Coleton Fishacre, Devon
Frank Homer Curtiss (1875-1946)
Nuffield Place, Oxfordshire
Donald Burness
Washington
National Geographic Magazine
Birrell Vacuum Vibrator Company
L. Brown
Smallhythe Place, Kent
Foster and Reynolds
Inaugural Committee
Bull, Stephen, 1960-
Gervase Frank Ashworth Jackson-Stops OBE (1947 - 1995)
W. Ridgeway (fl.1863)
United States. Army. Corps of Topographical Engineers
Leiter, Levi Ziegler, 1834-1904
Kedleston Hall, Derbyshire
Lacock, Wiltshire
Edmund Oldfield
Gunby Hall Estate, Lincolnshire
Tredegar, Newport
Wizards of the Coast, Inc
Sudbury Hall Museum of Childhood, Derbyshire