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, 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, 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.

Letter, 18 November 1924, Middlesex, George Parker to Mary Grierson. Expressing his appreciation for the chance to sing with the Reid orchestra and praising Tovey. Holograph signed.

Letter, 13 July 1963, London, Julian Jeffs to Mary Grierson. Returning correspondence between Maurice Baring and Tovey to Grierson. Typescript signed.

Letter, 27 September 1950, Surrey, Ralph Vaughan Williams to Mary Grierson. Explaining the reasons that Vaughan Williams asked Tovey for advice, informing Grierson of Tovey's comments when Vaughan Williams suggested Grierson should succeed him as Professor at Edinburgh. Typescript signed, with stamped envelope.

Letter, 11 October 1950, Surrey, Ralph Vaughan Williams to Mary Grierson. Expressing the hope that Grierson will describe Tovey's help to Vaughan Williams. Typescript signed, with stamped envelope.