4 autograph letters, signed, to J.M. Keynes. 1916-46.
3 autograph letters, signed, (of which 2 are photocopies), and 1 carbon typed letter, signed, from J.M. Keynes. 1913-46.
This file also contains 1 autograph postcard, signed, from J.H. Clapham to J.M. Keynes, [17 Feb. 1916]; a carbon typescript, 'Combined operations and a Great General Staff', by A.V. Hill, Feb. 1942; and a roneo typescript biographical account of J.M. Keynes and photocopies of supporting papers for J.M. Keynes' election to the Royal Society, 1946.