Letter, 12 May 1931, Edinburgh, Loudoun Shepherd to Robert Trevelyan. Informing Trevelyan that The Edinburgh Opera Company have agreed to perform ' The Bride of Dionysus' and a provisional date for the performances at the Kings theatre. Typescript signed.

Letter, 2 November 1932, Edinburgh, Loudoun Shepherd to Robert Trevelyan. Informing Trevelyan that all scores have now been returned. Typescript signed.

Letter, 8 October 1939, Edinburgh, Mabel A. Lumsden to Robert Trevelyan. Concerning the props of ' The Bride of Dionysus', and a note on the war. Holograph signed.

Letter, 15 May 1929, Edinburgh, Mona Benson to Robert C. Trevelyan. Expressing a feeling of privilege to have been involved in ' The Bride of Dionysus'. Holograph signed.

Letter, 14 June 1931, Edinburgh, Mona Benson to Robert Trevelyan. Agreeing to perform in The Bride of Dionysus, and advice for the production of the work, especially staffing. Holograph signed.

Letter, 9 April 1917, Edinburgh, Donald Tovey to Robert Trevelyan . Thanking Trevelyan for a volume of his poetry, "The Pearl tree". Ms. transcript by Hubert Foss.

Letter, 15 May 1929, Edinburgh, W. D. Smart to Robert Trevelyan. Note of finances connected with the opera and Reid orchestra and enclosing a cheque for Trevelyan. Holograph signed.

Letter, 6 May 1932, Edinburgh, W. D. Smart to Robert Trevelyan. Note of finances connected with the opera and Reid orchestra and enclosing a cheque for Trevelyan. Holograph signed.

Letter, 30 October 1939, Edinburgh, Wallace & Guthrie to Robert Trevelyan. Informing Trevelyan of correspondence with Messers. Howard & Wyndham and Messers. Clarkson. Typescript signed.

Letter, 27 May 1931, Edinburgh, Loudoun Shepherd to Robert Trevelyan. Concerning arrangements for 'The Bride of Dionysysus'. Typescript signed.