Correspondents include: James Grigg [Principal Private Secretary to the Chancellor of the Exchequer] (10); Sir Horace Hamilton [Chairman, Board of Customs and Excise, until mid-1927] (2); Lieutenant-Colonel Cecil Gaunt; Sir Francis Floud [Chairman, Board of Customs and Excise, from latter part of 1927] (5); 2nd Lord Hamilton of Dalzell [Jockey Club Steward] (6); Sir Benjamin Hawkins [Solicitor to the Board of Customs and Excise]; Ralph Glyn MP (2); Sir William Joynson Hicks [later 1st Lord Brentford, Home Secretary]; Frank Newsam [Private Secretary to the Home Secretary]; Donald Fergusson [Private Secretary to the Chancellor of the Exchequer].Also includes: various newspaper cuttings, including articles by the Aga Khan and Sir Abe Bailey; notes of interviews between WSC and Treasury officials, and the Jockey Club and the Aga Khan; various Cabinet memoranda, including one containing the Jockey Club report on amending the betting laws and one on the press attitude to the totalisator; copies of the totalisator bill.Subjects covered by the file include: opinions for and against the totalisator; the government facilitating a private members' bill; Lord Hamilton's bill; the development of greyhound racing and other forms of betting.