National Geographic Society
575 Wandsworth Road, London
National Rose Society
Belton House, Lincolnshire
Frederick Vincent Theobald (1868-1930)
Cragside, Northumberland
National Geographic Society (U.S.). Cartographic Division
Shaw's Corner, Hertfordshire
Leonard Hollis
Irish National Foresters' Society
Royal National Rose Society
National Geographic Book Service
Greys Court, Oxfordshire
Church of England. Men's Society. National Conference
Hardwick Hall, Derbyshire
National Geographic Society (Washington, D.C.)
Tyntesfield, North Somerset
Lacock, Wiltshire
Courtney Page
Wightwick Manor, West Midlands
Sissinghurst Castle Garden, Kent
National Geographic Society (U.S.)
Lyme, Cheshire
National Society for Promoting the Education of the Poor in the Principles of the Established Church (Great Britain)
Dunham Massey, Cheshire
Calke Abbey, Derbyshire
Oxburgh Hall, Norfolk
Hughes, H. Harold 1864-1940. (Henry Harold)
Plas Newydd, Anglesey
Monk's House, Rodmell, East Sussex
Coleton Fishacre, Devon
Welsh National Agricultural Society
Erddig, Wrexham
Rowallane, County Down
National Bible Society of Scotland
National Geographic Magazine
Baddesley Clinton, Warwickshire
Hunters' Improvement and National Light Horse Breeding Society
Speke Hall, Merseyside
Rev. S. Clark
George Massee (1850-1917)
Standen House and Garden, West Sussex
Bertram Lloyd
Soho Gallery Ltd
Llanerchaeron, Ceredigion