Cockcroft, John, Sir, 1897-1967
John Cockroft correspondence, 1940-1967.
Correspondence with J. R. Oppenheimer, 1940-1967, and with G. Garnow.
Physicist.
Physicists -- Correspondence.
Physicists. lcsh
AIP-ICOS
Library of Congress. Manuscript Division. James Madison Memorial Building, First Street and Independence Avenue SE, Washington, DC 20540, USA