Letter, 23 January 1929, Edinburgh, Charles Guthrie to R. C. Trevelyan. Discussion of the draft agreement with The Edinburgh Opera Comapny for the production of 'The Bride of Dionysus '. Typescript signed.

Letter, 21 February 1929, Edinburgh, Charles Guthrie to R. C. Trevelyan. Requesting that Trevelyan sign the agreement between the Edinburgh Opera Company, himself and Tovey, concerning ' The Bride of Dionysus '. Typescript signed.

Letter, 2 February 1929, Edinburgh, Charles Guthrie to Robert Trevelyan. Discussion of the contract between Tovey, Trevelyan and the Edinburgh Opera Company. Typescript signed.

Letter, 25 February 1929, Edinburgh, Charles Guthrie to Robert Trevelyan. Enclosing a letter from Charles Ricketts, and discussing the agreement over ' The Bride of Dionysus' . Typescript signed.

Letter, 15 March 1929, Edinburgh, Charles Guthrie to Robert Trevelyan. Enclosing a new agreement, thanking Trevelyan for a cheque and details of the costs of properties for the opera. Typescript signed.

Letter, 14 June 1929, Edinburgh, Charles Guthrie to Robert Trevelyan. Concerning the finances of the 'Bride of Dionysus' and expressing pleasure at having been involved with the production. Holograph signed.

Letter, 9 April 1929, Edinburgh, C. E. Hedmonth to Robert Trevelyan. Criticising the music Tovey has written for the Opera, suggesting Tovey needs a good conductor. Holograph signed.

Letter, 8 May 1929, Edinburgh, James Bee to Robert Trevelyan. Expressing the Edinburgh Opera company's pleasure at being involved with Trevelyan, Tovey and The Bride of Dionysus. Holograph signed.

Letter, 30 April 1919, London, Percy Such to Robert Trevelyan. Asking if Tovey has shown his opera score to Beecham, who is in Edinburgh looking out for English works. Holograph signed.

Letter, 18 October 1917, Surrey, Sophie Weisse to Robert Trevelyan. Requesting that Trevelyan encourage and inspire Tovey to finish his opera. Holograph signed.