Correspondence on the League, with individuals including: Sir Thomas Beecham, on the constitution, financial position and purposes of the League; Sir John Reith on relations between the League and the Covent Garden Opera Syndicate; Sir Hugh Allen [Director of the Royal College of Music]; Lilian Baylis, Lessee and Manager of the Old Vic Theatre and Sadler’s Wells, on finding funding for alterations to Sadler's Wells.

Also includes: legal opinion on returning the League's money to its subscribers; draft memoranda on unifying all the separate British opera companies within the League.