Mayo undertook the commission for a memorial to Sir William Glasgow. The sculpture has Glasgow in the uniform of an officer of the Light Horse holding a pair of field glasses. The finished bronze statue is about 2.5 metres high. Sir William Glasgow Memorial was listed on the Queensland Heritage Register on 13 May 2004. This file includes: pamphlet for the Major-General Sir William Glasgow Memorial Appeal (1960); Draft agreement between Douglas Martin Fraser of Mundoolun and Daphne Mayo for a cast bronze statue of the figure of the late Sir William Glasgow, with emendations, unsigned, 1961; typescript regarding the agreement with Mr D. M Fraser, including recommendations for amendments regarding personal insurance, undated, unsigned; newspaper cuttings; receipts from Edward Lumley & Sons; handwritten draft letters and notes by Mayo on envelopes and scraps of paper; invoice for bronze casting; and correspondence. Correspondents include: D.M. Fraser (including letters from dating from 1957, prior to the Statue being commissioned); and a letter from Queensland Railways dated 16 Jun 1978 regarding the re-siting of the Statue of Sir William Glasgow.

This file comprises correspondence from the Winton Tourist Promotion Association to Daphne Mayo regarding the design of a Silver Swaggie. In 1959 Mayo completed the Jolly Swagman Statue for Winton and a picture of this statue appears on their letterhead.

12 letters from 6 Aug 1918 to 23 Dec 1929. Correspondents include: Lewis McDonald (Secretary for the David Bowman Memorial Committee) (2 letters); N.C. Aitken of Streatham (13 Mar 1920); Chiurazzi (2 Nov 1925); J.W. Singer & Sons (4 Nov 1925); The Registrar, University of Queensland re the bust of Sir Matthew Nathan (5 Mar 1926); Cecil Dunn (28 Aug 1928); Bristish Medical Association re the Bancroft Memorial Medal (23 Jul 1928); Wunderlich Ltd re Stations of the Cross for Holy Spirit Church New Farm (20 Nov 1929).

43 letters and 2 telegrams from 22 Jan 1930 to 25 Oct 1939. Correspondents include: Jack P. Donoghue, Architect, regarding the Pediment and Station of the Cross for Holy Spirit Chruch New Farm (22 Jan 1930); several letters from C. Bruce Dellit, Architect regarding the Anzac Memorial Building, New South Wales; Trustees of the Anzac Memorial Building (25 Sep 1930); S.A. Parker (9 Jan 1931); Customs and Excise Office (10 Feb 1931); Society of Artists requesting receipt for sale of bust (24 Sep 1931); E. J. Gregory (Manufacturer of Bronze Statuary and all Intricate Castings); letters from Prime Minister's Department and Civic Branch of the Department of the Interior regarding submitting designs for the Memorial to His late Majesty King George V (1936); City of Melbourne regarding King George Memorial (1937); A.B. Burton, Surrey (1938-1939); Society of Artists notifying her they have awarded her their Medal (15 Aug 1938); Rohm & Hass (25 Oct 1939). Some letters are accompanied by a draft response.

Approximately 100 letters (including telegrams) from 29 Apr 1940 to 21 Nov 1949. Correspondents include: A.B. Burton; Public Library of New South Wales regarding the doors; Hennessy, Hennessy & Co.; Brisbane Crematorium; Moir & Sutherland; T.C. Davis (High Commissioner for Canada) regarding his purchase of "Blackie"; Rev. Colin C. Chittleborough of St. Jude's Rectory, Brighton; Queensland National Art Gallery regarding the "Lloyd Rees" Sculpture; David Jones' Art Gallery; Mary Corkery, Artists' Agent; Royal S.A. Society of Arts; John Eldershaw regarding the bust of Professor Duhig; Mary P. Harris; National Gallery of Victoria.

22 newspaper cuttings (one has handwritten notes attached) about the Godfrey Rivers Trust, 1933 and undated.

Correspondence (21 letters), undated.

Drafts, fragments of drafts of outgoing correspondence. Mostly handwritten, some on fragments of paper or on the back of envelopes.

Two typescript copies of the Indenture creating the The Godfrey Rivers Trust, 5 Dec 1931.

Typescript and handwritten notes, catalogues, invitations relating to the Godfrey Rivers Trust and its competitions, 1933-1935, 1960, and undated.