A group of 63 letters received by J. R. M. Butler after publication, many from friends of H. M. Butler and J. R. M. Butler as well as members of his extended family. Some of the letters include personal recollections of H. M. Butler. Correspondents include Frances Anne Conybeare, W. J. Conybeare, D. H. S. Cranage, J. A. Cruikshank, Randall Davidson, Albinia Donaldson, T. Field, Edward Graham, Alan Gray, Charles Haddock, John Charles Hill, Sir Arthur Hort, David Macdonald, H. H. Montgomery, G. C. Moore Smith, Edith Wendell Osborne, R. St. John Parry, Godfrey Phillips, Ernest M. Pollock (Lord Hanworth), John Ross, Ronnie Ross, A. E. Shipley, Henry Yates Thompson, George Trevelyan, and P. N. Waggett.
Family correspondents include Sir Cyril K. Butler, Diana Butler, Dorothy Butler, E. M. B. Butler, Sir Geoffrey Butler, George Grey Butler, John Butler, Sir Montagu S. D. Butler, Ralph L. G. Butler, Marie Gray, Antonia Greenwood, Hugh Howson, David Morley-Fletcher, A. Francis Norman-Butler, C. L. Ramsay, G. M. N. Ramsay, Susan E. Ramsay, and Audrey Tower.