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, 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, 22 October 1952, London, Gordon Steele to Mary Grierson. Informing Grierson that Steele has become a full time singer and part of a group called The Renaissance singers and details of his engagements. Holograph signed, with stamped envelope, with concert programme, ' Music of the 17th & 18th centuries.

Letter, 24 March 1952, London, Hubert Foss to Mary Grierson. Discussion of a publication of a work on Tovey's markings and ways of interpreting them. Typescript signed, with envelope.

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

Letter, 13 April 1932, London, Frank Eames, Incorporated Society of Musicians to Mary Grierson. Discussng Grierson's arguments against a policy of the Incorporated Society of Musicians. Typescript signed.