Letter, 2 July 1924, Badgestein, Bronislaw Hubermann to Mary Grierson. Explaining that Huberman is to busy to play with Tovey this season, but would like to do so in the future. Holograph signed.

Letter, 18 March 1952, Pretoria, Anne Marol to Mary Grierson. Thanking Grierson for sending some music for the Johannesburg Municipal Orchestra to perform. Holograph signed.

Letter, 20 June 1930, Woking, Ethel Smyth to Mary Grierson. Arranging a meeting, asking whether Keith Foulkes can be engaged to play with Smyth, and queries over the music. Holograph signed.

Letter, 14 June 1931, Woking, Ethel Smyth to Mary Grierson. Informing Grierson that Smyth will be at Allt's choir rehearsal and discussing a forthcoming performance. Holograph signed.

Letter, 14 June 1930, Woking, Ethel Smythe to Mary Grierson. Attempting to arrange a suitable date to perform a work called ' The Prison', . Holograph signed.

Letter, 12 January 1951, London, Edward Dent to Mary Grierson. Discussing Tovey's scholarly approach to music. Holograph signed.

Letter, 21 June 1930, London, Fanny Davies to Mary Grierson. Accepting to be on a committee, and of performing a work. Holograph signed.

Letter, 16 May 1942, Edinburgh, Frank S. Nagel to Mary Grierson. Thanking Grierson for giving a lecture on Arthur Sullivan and suggesting that it is published in the Gilbert and Sullivan Journal. Typescript signed.

Letter, 29 February 1952, Laxa, Frede Christensen to Mary Grierson. Requesting a copy of a work for oboe. Holograph signed.

Letter, 12 March 1952, London, Geoffrey Cumberlege to Mary Grierson. Recept for a cheque for the publication of her biography of Tovey. Typescript signed, with receipts, [2]p. 22 x 22cm, and a review list, 22 x 18cm.