Organization British Council

Society of Authors (president | 1997-2013)

Arts Council (literary advisory panel chairman)

British Broadcasting Corporation (governor)

Downing College, Cambridge (honorary fellow)

Girton College, Cambridge (honorary fellow)

Prayer Book Society (lay patron)

St Hilda's College, Oxford (honorary fellow)

National Health Service

Department of Home Affairs

University of Edinburgh

University of Khartoum

Queen's University, Belfast

Royal Numismatic Society (president and honorary fellow)

Virgil Society (president)

University of East Anglia

Nottingham Trent University

Royal Naval Volunteer Reserve (WWII)

University of Leeds

University of Queensland

British Army

Harrods

The Oldie

Bletchley Park

University of Cambridge

European Commission

UK Foreign Office

Birmingham City Art Gallery

Courtauld Institute of Art (director)

Oxford University (Vice-Chancellor)

University of London (professor)

Hertford College, Oxford University

British Museum (trustee)

Victoria and Albert Museum (Advisory Council)

National Gallery (Trustee)

Government Code and Cipher School at Bletchley Park

Royal Air Force (WWII)

British Army (WWI)

British Institute, Madrid

Swarthmore College

Hofstra University

University of California, Davis

George Allen and Unwin

Unwin Hyman

Royal Naval Volunteer Reserve (sub-lieutenant)

Basil Blackwell (Book salesman)

Stanley Unwin Foundation (director)

Publishers' Association (treasurer, 1969 | president,1971 | vice-president, 1973)

Book Trade Benevolent Society (president, 1989-1995)

University of Edinburgh

University of Essex

British Association for the Advancement of Science

Royal Sussex Regiment (national service)

Church of England (priest)

St Peter's Church, Morden, London (vicar)

St James's Church, Piccadilly, London (rector)

Soul of Europe (cofounder)

University of Glamorgan

Loughborough University

Falmouth University

University of South Wales

Honourable Society of Cymmrodorion (vice-president)

Royal Cambrian Academy of Art

Liverpool Daily Post

Manchester Guardian

Aberystwyth University (librarian)

Cardiff University (librarian)

Sheffield University (librarian)

Swansea University (Director of Library and Information Services)

National Library of Wales (Librarian | 1998-2013)

Aberystwyth University (Council)

Legal Deposit Libraries Committee

CILIP (honorary fellow | 2015)

Coleg Cenedlaethol Cymru (Board | 2013 | chair | 2014-2017)

National Coal Board (research scientist)

Durham University (Anthropology department | lecturer | 1958 | professor and head of department | 1971 | Pro-Vice-Chancellor | 1979-1984)

Royal Anthropological Institute (hon. sec.)

International Union of Anthropological and Ethnological Societies (secretary general)

Biosocial Society (chair)

University College of North Wales, Bangor (Principal | 1984 | Vice-Chancellor)

Local Government Boundary Commission for Wales (chair | 1994-2001)

Welsh Language Education Development Committee (member | 1987-1994)

National Museum of Wales (Court of Governors | member | 1991-1994)

Broadcasting Council for Wales (member | 1996-2000)

Welsh Chamber Orchestra (chair)

Welsh Music Guild (vice-president)

Artworks Wales (patron)

Gwasg Gregynog (Board | chair)

St. Martin's School of Art

Hampstead School of Art