Correspondents include: W J Randall, Managing Director and Secretary of the Turf Guardian Society (6); John Davidson [Conservative Party Chairman] (3); 5th Lord Lonsdale; James Grigg [Principal Private Secretary to the Chancellor of the Exchequer] (5); Sir Philip Dawson MP; Walter Guinness [later 1st Lord Moyne]; 17th Lord Derby; Sir Horace Hamilton [Chairman, Board of Customs and Excise] (6); Edward Marsh [Private Secretary to WSC]; 2nd Lord Hamilton of Dalzell [Jockey Club Steward].Also includes: Turf Guardian Society notes; notes on the Betting Duty Reform Association; a petition from Newmarket [Suffolk] trainers; a copy of "The rules of racing and the rules and orders of the Jockey Club".Subjects covered by the file include: the views of bookmakers and horse-breeders; the effect of the tax on the popularity of the Conservative Party; the possibility of amending the tax, including 2nd Lord Newton's bill; the numbers attending race meetings; problems in the administration of the duty; race course shares.