| Reference number | Title | Date |
| PB/4/2/1/4 | Letters from David Pye re manufacture of proximity fuzes at Metropolitan-Vickers. | March-September 1939 |
| EC/1937/16 | Pye, Sir David Randall: certificate of election to the Royal Society | |
| PB/4/2/1/2 | Letters from David Pye and HT Tizard on photo-electric bomb work at Farnborough and Metropolitan-Vickers. | February-April 1938 |
| PB/6/2/1/3/1 | Correspondence with members of the Committee and other interested parties, 1945-1946 | August 1945-March 1946 |
| MS/850/2/3 | Copy of letter from Dr David R Pye, Ministry of Aircraft Production, Millbank, London to Assistant Secretary of the Royal Society | 25 March 1941 |
| MS/850/2/4 | Letter from Dr David R Pye, Ministry of Aircraft Production, Millbank, London to Secretary of the Royal Society [Sir Alfred Charles Glyn Egerton], The Royal Society, Burlington House, London | 1941 |
| MS/850/2/6 | Copy of letter from Secretary of the Royal Society [Sir Alfred Charles Glyn Egerton] to Dr David R Pye, Ministry of Aircraft Production, Millbank, London | 1 April 1941 |
| RR/22/62 | Referee's report by Alfred William Porter, on a paper 'Thermal properties of carbonic acid low temperatures' by Charles Frewen Jenkin and David Randall Pye | 12 April 1915 |
| RR/22/61 | Referee's report by Hugh Longbourne Callendar, on a paper 'Thermal properties of carbonic acid low temperatures' by Charles Frewen Jenkin and David Randall Pye | March 1915 |
| RR/20/77 | Referee's report by Alfred William Porter, on a paper 'The thermal properties of carbonic acid low temperatures' by Charles Frewen Jenkin and David Randall Pye | 16 March 1913 |
| RR/67/189 | Letter from David Randall Pye on a paper 'Flame spectra in the photographic infra-red' by Alfred Gordon Gaydon to Alfred Charles Glyn Egerton | 17 January 1941 |
| RR/68/78 | Letter from David Randall Pye, to Alfred Charles Glyn Egerton, regarding a paper 'Stress systems in aeolotropic plates. IV' by Albert Edward Green | 3 September 1941 |
| RR/66/34 | Referee's report by David Randall Pye, on a paper 'The friction of lubricated metals' by Frank Philip Bowden and L Leben | [November 1939] |
| RR/67/399 | Letter from David Randall Pye, on an unnamed paper by Richard Vynne Southwell to the Secretary of the Royal Society | 19 February 1940 |
| RR/68/33 | Letter from David Randall Pye, to Alfred Charles Glyn Egerton, regarding a paper 'Relaxation methods applied to engineering problems - The elastic stability of plane frameworks and of flat plating' by Derman Guy Christopherson, L Fox, J R Green, F S Shaw and Richard Vynne Southwell | 15 November 1941 |
| RR/67/205 | Letter from J D Griffith Davies, Assistant Secretary of the Royal Society, on a paper 'Stress systems in aeolotropic plates, III' by Albert Edward Green to David Randall Pye | 19 February 1941 |
| RR/67/201 | Letter from J D Griffith Davies, Assistant Secretary of the Royal Society, on a paper 'Stress systems in aeolotropic plates, III' by Albert Edward Green to David Randall Pye | 17 January 1941 |
| RR/67/200 | Letter from J D Griffith Davies, Assistant Secretary of the Royal Society, on a paper 'Stress systems in aeolotropic plates, III' by Albert Edward Green to David Randall Pye | 2 December 1940 |
| RR/68/68 | Letter from David Randall Pye, to Alfred Charles Glyn Egerton, regarding a paper 'The spectra of chilled hydrocarbon flames' by Alfred Gordon Gaydon | 3 June 1941 |
| RR/68/195 | Letter to David Randall Pye, regarding a paper 'Relaxation methods applied to engineering problems VIIA - Biharmonic analysis as applied to the flexure and extension of flat elastic plates' by L Fox and Richard Vynne Southwell | 29 August 1941 |
| MS/850/2/2 | Letter from Dr David R Pye, Ministry of Aircraft Production, Millbank, London to Secretary of the Royal Society [Sir Alfred Charles Glyn Egerton], The Royal Society, Burlington House, London | 22 March 1941 |
| RR/20/76 | Referee's report by Hugh Longbourne Callendar, on a paper 'The thermal properties of carbonic acid low temperatures' by Charles Frewen Jenkin and David Randall Pye | February 1913 |
| RR/66/248 | Letter to David Randall Pye, regarding a paper 'The phosphorescence of various solids' by John Turton Randall and Maurice Hugh Frederick Wilkins | 19 April 1940 |
| MS/850 | Papers concerning nuclear fission by Hans von Halban and Lew Kowarski and correspondence regarding their deposit with the Royal Society | 1939-1942 |
| RR/68/173 | Letter from David Randall Pye, to Alfred Charles Glyn Egerton, regarding a paper [attributed] 'Relaxation methods applied to engineering problems VIIA - Biharmonic analysis as applied to the flexure and extension of flat elastic plates' by L Fox and Richard Vynne Southwell | 28 March 1941 |
| RR/67/17 | Letter from David Randall Pye, on two papers 'On the mechanism of boundary lubrication. I. The action of long-chain polar compounds' by Otto Beeck, J W Givens and A E Smith and 'On the mechanism of boundary lubrication. II. Wear prevention by addition agents' by Otto Beeck, J W Givens and E C Williams to Alfred Charles Glyn Egerton | 14 August 1940 |
| RR/68/175 | Letter to David Randall Pye, regarding a paper 'Relaxation methods applied to engineering problems VIIA - Biharmonic analysis as applied to the flexure and extension of flat elastic plates' by L Fox and Richard Vynne Southwell | 24 March 1941 |