Correspondence A-J on WSC's activities as a racehorse owner and breeder File includes correspondence with Frank Salisbury (5) and Sir Humphrey de Trafford [Steward of the Jockey Club] (2) on portrait of WSC for the Jockey Club, Newmarket; Arnold Carey Foster (6) mainly on the management of WSC's Newchapel Stud; correspondence and cuttings on Colonist II, including letters from Raoul Millais (5) on portrait of Colonist II [now hanging in the Drawing Room at Chartwell], Lord Derby; and correspondence (120 items) on dinner at 10 Downing Street for members of the Jockey Club, 1953.