Comprises:

Cambridge Humanists:

• Notes and correspondence with officers of the Cambridge Humanists to arrange talk given 27 Nov 1962, 1961-1962 (27 items).

Cambridge New Architecture:

• A Guide to the post-war buildings, published by the Editors at Trinity Hall, and written by Nicholas Taylor: Cambridge - Preface by WGH, 1964 (3pp manuscript).

Canberra:

• A Place for Parliament, (18pp), and (13pp), with (2pp), in hand of R W Gray, July 1969 (2 typescripts);
• The Future of Canberra, reprint from Town Planning Review, Vol.XXIX No. 3 Oct 1958, (1 offprint).

Canterbury:

• Correspondence with L H Wilson (City Architect), 1956 (9 letters): Planning Officer to arrange talk at Canterbury School of Architecture on St. Pauls on 18 Sept 1956 to Canterbury District Chapter of South-Eastern Society of Architects.

Central Office of Information:

• Correspondence with G P H Garton (Features Section, Overseas Press Services Division) on WGH articles The Changing Face of Britain and The New London (q.v.), 1961-1962 (14 letters);
• The Changing Face of Britain, Feb 1962 (5pp typescript + 5pp manuscript).

City of London:

• Civic Toast at Annual Banquet Guildhall, 26 Nov 1956 (8pp manuscript + 6pp typescript);
• Notes, press cuttings and correspondence with R Ward (Junior Warden, Guild of Freeman) and Mayor S W Wells (Master, Guild of Freeman) to arrange for WGH to propose Civic Toast, 1956 (19 items).

Cockburn Association:

• Historic Buildings and Modern Environment, AGM, Edinburgh, 8 May 1969 (14pp manuscript; 7pp typescript);
• Correspondence with R M Martin (Honorary Secretary and Treasurer) about talk expenses and Annual Report for 1968 (reference to WGH), 1969; 1968 (3 items).

College Hall, University of London:

• The Changing Face of London, (Fourth Thyra Alleyne Memorial Lecture), 1 Mar 1960 (2pp manuscript + 21pp typescript);
• Correspondence with Miss P D Ede (Principal) to arrange Fourth Thyra Alleyne Memorial Lecture, 1959-1960 (10 letters).

College of Estate Management:

• Notes for speech at Commemoration Day, 25 May 1961 (6pp manuscript + 3pp typescript);
• Notes and correspondence with Sir Alexander Killick (President) and P N Brook (Secretary) to arrange speech, 1960-1961, (12 items).

Construction in South Africa:

• A South African Changes the Face of London Construction in Southern Africa, pp 45-53, July 1963 (1 periodical).

Coventry - Conference on Urbanisation, 23 Jan 1966 (St. Mary's Hall):

• Programme (WGH gave lecture on planning), 1966 (1 item);
• Notes and correspondence with Bishop of Coventry and Rev. S E Verney (Canon Residentiary) to arrange, 1965-1966 (16 items).

The Culture of Cities (Book by Lewis Mumford):

• Review Article by WGH, n.d. (8pp typescript).