Letter, 11 May 1929, Edinburgh, Charles Guthrie to Robert Trevelyan. Concerning the cost of storing the scenery and props of ' The Bride of Dionysus'. Typescript signed.

Letter, 21 May 1937, Edinburgh, Charles Guthrie to Robert Trevelyan. Informing Guthrie that the scenery of ' The Bride of Dionysus' is stored under the McEwan Hall, and the cost of insuring the scenery. 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, 6 June 1932, Edinburgh, Charles Guthrie to Robert Trevelyan. Concerning the costs of performing in The Kings Theatre. Typescript signed.

Letter, 23 October 1939, Edinburgh, Charles Guthrie to Robert Trevelyan. Discussing whether to return the wigs etc. to Messers. Clarkson, or to sell them to Erik Chisholm. Typescript signed.

Letter, 9 August 1939, Edinburgh, Charles Guthrie to Robert Trevelyan. Discussing a theft of wigs, expressing concern over Tovey and Lady Tovey's state of health, and suggesting that Tovey take a holiday in Bad Nauheim. Typescript 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, 16 April 1929, Edinburgh, George Campbell to Robert Trevelyan. Enclosing a letter from Loveday & Higson. Holograph signed.

Letter, 10 October 1918, Edinburgh, George Campbell to Robert Trevelyan. Outlining the responsibilities the Edinburgh Opera company will take on with the production of 'The Bride of Dionysus'. 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.