| RefNo | Title | Date |
| EC/1843/07 | Rees, George Owen: certificate of election to the Royal Society | |
| IM/Maull/003772 | Rees, George Owen | nd |
| NLB/3/385 | Copy letter from an unknown correspondent, to Harrison & Sons | 29 May 1889 |
| RR/1/196 | Referee's report by John Bostock, on a paper 'On the chemical analysis of the contents of the thoracic duct in the human subject' by George Owen Rees | [c.1842] |
| RR/1/124 | Referee's report by George Leith Roupell and George Owen Rees 'Contributions to the chemistry of the urine. Part II - On the variations in the alkaline and Earthy phosphates in disease' by Henry Bence Jones | 23 May 1846 |
| RR/1/197 | Letter from George Owen Rees, on his paper 'On a function of the red corpuscles of the blood, and on the process of arterialization' to the Royal Society | 22 January 1848 |
| RR/1/199 | Referee's report by George Leith Roupell, on a paper 'On a function of the red corpuscles of the blood, and on the process of arterialization' by George Owen Rees | 8 November 1847 |
| RR/1/203 | Referee's report by George Owen Rees, on a paper 'Experiments relative to animal temperature, showing that there must be some source of animal heat besides the combustion of the carbon and the hydrogen contained in the food of animals' by Robert Rigg | 27 October 1846 |
| AP/30/16 | Unpublished paper, 'On a function of the red corpuscles of the blood on the process of arterialisation' by George Owen Rees | 28 April 1847 |
| RR/2/148 | Referee's report by George Owen Rees, on a paper 'An account of the organic chemical constituents or immediate principles the excrements of man and animals in the healthy state' by William Marcet | 6 July 1854 |
| AP/37/12 | Unpublished paper, 'An experimental inquiry into the nature of the metamorphosis of saccharine matter, as a normal process of the animal economy' by Frederick William Pavy | 1855 |
| AP/38/6 | Paper, 'A description of a new sphygmoscope, an instrument for indicating the movements of the heart and blood-vessels; with an account of observations obtained by the aid of that instrument' by S [Somerville] Scott Alison | 12 January 1856 |
| AP/38/6/1 | Manuscript, 'A description of a new sphygmoscope, an instrument for indicating the movements of the heart and blood-vessels; with an account of observations obtained by the aid of that instrument' by S [Somerville] Scott Alison | 12 January 1856 |
| RR/1/198 | Referee's report by William Sharpey, on a paper 'On a function of the red corpuscles of the blood, and on the process of arterialization' by George Owen Rees | November 1847 |
| RR/1/209 | Referee's report by George Owen Rees, on a paper 'Remarks on the extractive material of, and on the excretion of sulphur and phosphorus by the kidneys in an unoxidized state' by Edmund Ronalds | [c.1846] |