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Cockcroft, John Douglas, Sir, 1897 - 1967 (Knight, nuclear physicist and first Master of Churchill College)

 Person

Dates and places

1897-1967

Geographical areas

Cambridge University, Cambridge, UK

Legal status / Nationality

British

Sphere of activity

Physics

Found in 22 Collections and/or Records:

 File

20 KV Rectifier, 1937 - 1939

 File
Reference Code: GBR/0265/UA/CAV 4/5.vi
Scope and Contents

Comprises: correspondence exchanged chiefly between J.D. Cockcroft and De Bruyn, estimates and blue-print for erection by Watson and Co. (Electro-Medical) of a rectifier at G.E.C., Wembley and the Magnetic Laboratory in the Cavendish; electrical specifications for the new Cavendish buildings and lists of suggestions for designs based on the Scandinavian tour.

Dates: 1937 - 1939
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Accounts, correspondence and memoranda relating to the costs of rebuilding and efforts at economies, 1937-01-12 - 1939-04-26

 File
Reference Code: GBR/0265/UA/CAV 4/2.iii
Scope and Contents

Correspondents include T.C. Knox-Shaw, H.C. Marshall, H.G. Cherry and Charles Holden.

Dates: 1937-01-12 - 1939-04-26
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Anatomy School Alterations, 1938-08 - 1938-10

 File
Reference Code: GBR/0265/UA/CAV 4/2.via
Scope and Contents

Comprises: correspondence, specifications, plans and lists of work.

Dates: 1938-08 - 1938-10
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Assorted correspondence between J.D. Cockcroft, J.F. Allen, J.A. Ratcliffe, W.B. Lewis, with Tyler and Freeman about the electrical contract, 1938-01-27 - 1944-04-17

 File
Reference Code: GBR/0265/UA/CAV 4/4.iii
Scope and Contents From the Fonds: The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1938-01-27 - 1944-04-17
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 Fonds

Cavendish Laboratory archives, 1876 - 1999

 Fonds
Reference Code: GBR/0265/UA/CAV
Scope and Contents The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1876 - 1999
Conditions Governing Access: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Correspondence and estimates re rewiring, chiefly exchanged between J.D. Cockcroft and Messrs. Tyler and Freeman, 1938-03-08 - 1939-08-21

 File
Reference Code: GBR/0265/UA/CAV 4/5.v
Scope and Contents From the Fonds: The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1938-03-08 - 1939-08-21
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Correspondence, chiefly with Lord Austin and the University Treasurer, relating to arrangements for laying foundation stone for Austin Wing; draft inscription for stone, 1939-03 - 1939-05

 File
Reference Code: GBR/0265/UA/CAV 4/2.vi
Scope and Contents From the Fonds: The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1939-03 - 1939-05
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 Item

Correspondence concerning applications for release and/or grants; promotions of demonstrators within the Cavendish; arrangement of a contract for radio research under J.A. Ratcliffe; release of J.D. Cockcroft from Canada, 1944-10-20 - 1945-09-13

 Item
Reference Code: GBR/0265/UA/CAV 10/4.1-159
Scope and Contents From the File:

Comprise: correspondence, lists of names, informal minutes of Laboratory committee meetings, circulars from General Board and Ministry of Labour and National Service.

Dates: 1944-10-20 - 1945-09-13
Conditions Governing Access: This material is closed to scholars for 80 years from date of creation under data protection legislation.
 File

Correspondence concerning visits to Hayes Gramaphone Building, Leeds, Paris, Eindhoven, Denmark and Sweden, with some calculations of costs, 1936-11 - 1937-07

 File
Reference Code: GBR/0265/UA/CAV 4/2.ix
Scope and Contents From the Fonds: The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1936-11 - 1937-07
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Correspondence relating to the needs of new Laboratory and of Ernest Rutherford's successor, with proposals for reorganisation of Laboratory, 1937-11

 File
Reference Code: GBR/0265/UA/CAV 4/2.vii
Scope and Contents From the Fonds: The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1937-11
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Correspondence, vouchers, unconfirmed minutes of a committee of the Buildings Syndicate, and plans relating to the improvement of electrical equipment for the cyclotron, 1944-05 - 1947-02

 File
Reference Code: GBR/0265/UA/CAV 4/2.x
Scope and Contents

Includes letters from H.C. Marshall, J.D. Cockcroft and T. Knox-Shaw. Also some miscellaneous unrelated papers about A.R.P. and fuel-saving.

Dates: 1944-05 - 1947-02
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Electrical class-room alterations, 1938-04-20 - 1938-06-03

 File
Reference Code: GBR/0265/UA/CAV 4/5.iv
Scope and Contents

Comprises: correspondence between J.A. Ratcliffe, E.S. Shire, and J.D. Cockcroft, estimates and tenders for re-wiring Part II class-room.

Dates: 1938-04-20 - 1938-06-03
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Electrical contract, 1938-11-22 - 1940-01-30

 File
Reference Code: GBR/0265/UA/CAV 4/4.I
Scope and Contents

Comprises: three drafts of specifications and estimate by Messrs. Tyler and Freeman, with memoranda of old materials recovered and plans of special installations, all annotated by J.D. Cockcroft.

Dates: 1938-11-22 - 1940-01-30
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Estimates and specifications, 1938-07 - 1938-10

 File
Reference Code: GBR/0265/UA/CAV 4/1
Scope and Contents

Include working copy of specification with notes, possibly by J.D. Cockcroft.

Dates: 1938-07 - 1938-10
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Fittings, 1938-02-02 - 1939-05-26

 File
Reference Code: GBR/0265/UA/CAV 4/5.iii
Scope and Contents

Comprises: brochures, estimates and correspondence between J.D. Cockcroft and M. Polanyi.

Dates: 1938-02-02 - 1939-05-26
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Minutes of staff committee on detailed planning of the rebuilding, with some specifications and a few committee papers from other sub-committees; 40 letters from E.S. Shire, possibly to J.D. Cockcroft, 1937-11 - 1940-01

 File
Reference Code: GBR/0265/UA/CAV 4/2.ii
Scope and Contents From the Fonds: The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1937-11 - 1940-01
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Minutes, reports, estimates, notes of visits to Leeds University and various continental laboratories, 1936-8; minutes of various committees and sub-committees; 52 letters from W.L. Bragg to J.D. Cockcroft, 1936-07-23 - 1938-12-10

 File
Reference Code: GBR/0265/UA/CAV 4/2.I
Scope and Contents From the Fonds: The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1936-07-23 - 1938-12-10
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Reconstruction of Old Laboratory, 1938-05 - 1938-08

 File
Reference Code: GBR/0265/UA/CAV 4/2.v
Scope and Contents

Comprises: copy orders for work and equipment with lists of changes proposed in east wing, with some notes to Crowe, Cherry, Feather, and Appleton.

Dates: 1938-05 - 1938-08
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Specifications and some correspondence, chiefly J.D. Cockcroft's, relating to alterations to the Maxwell research room on the ground floor, 1938-05 - 1938-06

 File
Reference Code: GBR/0265/UA/CAV 4/2.viii
Scope and Contents From the Fonds: The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1938-05 - 1938-06
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Specifications listing numbers and varieties of blinds, curtains, floor coverings and furniture required, 1939-03 - 1939-04

 File
Reference Code: GBR/0265/UA/CAV 4/5.I
Scope and Contents From the Fonds: The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1939-03 - 1939-04
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Tenders and specifications for supply of equipment for the new High Tension Laboratory with many notes by J.D. Cockcroft, 1935 - 1938

 File
Reference Code: GBR/0265/UA/CAV 3/2.ii
Scope and Contents From the Fonds: The records relate chiefly to the erection and administration of the laboratory buildings and their contents. Indeed, the earliest records are vouchers for equipment purchased by James Clerk Maxwell, first Professor, in 1876-9. There are also smaller quantities of records relating to laboratory clubs, 1902-72, the celebration of the Clerk Maxwell centenary, 1931, research programmes, 1960-92, including the Cambridge Energy Research Group, and applications to work and study at the laboratory,...
Dates: 1935 - 1938
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.
 File

Wiring fitting, 1932 - 1939

 File
Reference Code: GBR/0265/UA/CAV 4/5.ii
Scope and Contents

Comprises:-specifications, estimates, brochures, tenders and correspondence, chiefly conducted by J.D. Cockcroft with W. Lucy, Metro-Vick, Troughton and Young, Chloride Storage Company, Siemens-Schuck, Tyler and Freeman, G.E.C., Tudor Accumulator Company.

Dates: 1932 - 1939
Conditions Governing Access: From the Fonds: The archives are unrestricted, except for 80 years closure period imposed on personal files, catalogued as CAV 10, 14-15 under data protection legislation.