Letters and papers re Charles Hawker's visit to China and Japan in 1936, 1936-1938 Box 9 Unit ID: 10 Date: 1936/1938
Letters, speeches about the wheat industry including letter referring to Hawker's pamphlet Problems of the wheat growers 1934 and material on wheat pool propaganda Box 5 Unit ID: 6-11
Letters to Charles Hawker, 1924-1932. Letter from W. Penefather to Mrs Needham, March 1962 Box 8 Unit ID: 2 Date: March 1962