| Reference number | Title | Date |
| IM/GA/WRS/8397 | Thornton, Sir Henry Gerard | |
| IM/GA/WRS/8397/E | Thornton, Sir Henry Gerard | nd |
| IM/GA/WRS/8397/F | Thornton, Sir Henry Gerard | nd |
| MDA/A/16/65 | Report of meeting on United Kingdom and Union of Soviet Socialist Republics [USSR] relations | 7 June 1956 |
| RR/40/108 | Referee's report by Vernon Herbert Blackman, on a paper 'The role of the young lucerne plant in determining the infection of the root by the nodule-forming bacteria' by Henry Gerard Thornton | 16 February 1929 |
| RR/42/66 | Referee's report by Vernon Herbert Blackman, on a paper 'The fluctuations of bacterial numbers and nitrate content of field soils' by Henry Gerard Thornton and P H H Gray | 28 April 1930 |
| RR/54/143 | Referee's report by Vernon Herbert Blackman, on a paper 'The numbers of bacterial cells in field soils, as estimated by the ratio method' by Henry Gerard Thornton and P. H. H. Gray | 30 April 1934 |
| RR/72/105 | Referee's report by Henry Gerard Thornton, on a paper 'The utilization of potassium by Bact. lactis aerogenes' by A A Eddy and Cyril Norman Hinshelwood | 1949 |
| RR/72/16 | Referee's report by Henry Gerard Thornton, on a paper 'The utilization of carbon sources by Bact. lactis aerogenes I. General survey' by A C Baskett and Cyril Norman Hinshelwood | 1949 |
| RR/72/17 | Referee's report by Henry Gerard Thornton, on a paper 'Oxidation-reduction processes in cultures of bacteria. II. Anaerobic growth of Bact. lactis aerogenes' by A C Baskett and Cyril Norman Hinshelwood | 1949 |
| RR/72/160 | Referee's report by Henry Gerard Thornton, on a paper 'An investigation of the nature of certain adaptive changes in bacteria' by Cyril Norman Hinshelwood and S Jackson | 1949 |
| NLB/67/486 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Vernon Herbert] Blackman, FRS | 8 January [1925] |
| MS/846 | Photographs by Sir Henry Gerard Thornton | 1952-1956 |
| IM/004590 | Thornton, Sir Henry Gerard | nd |
| IM/004591 | Thornton, Sir Henry Gerard | nd |
| IM/GA/WS/2878 | Thornton, Sir Henry Gerard | nd |
| RR/57/26 | Referee's report by Vernon Herbert Blackman, on a paper 'The action of sodium nitrate upon the infection of Lucerne root-hairs by nodule bacteria' by Henry Gerard Thornton and John Russell | 5 November 1935 |
| MDA/A/16/51 | Minutes of the British Committee for Cooperation with UNESCO in the Natural Sciences | 16 May 1956 |
| IM/004589 | Thornton, Sir Henry Gerard | nd |
| EC/1941/18 | Thornton, Sir Henry Gerard: certificate of election to the Royal Society | |
| RR/32/28 | Referee's report by Vernon Herbert Blackman, on a paper 'The relation between the devlopment, structure and functioning of the nodules on Vicia faba, as influenced by the presence or absence of boron in the nutrient medium' by Winifred Brenchley and Henry Gerard Thornton | January 1925 |
| RR/62/57 | Referee's report by Vernon Herbert Blackman, on a paper 'The abnormal structure induced in nodules on lucerne (Medicago sativa L.) by the supply of sodium nitrate to the host plant' by Henry Gerard Thornton and Joyce E Rudorf | [February 1936] |
| RR/67/58 | Referee's report by Vernon Herbert Blackman, on a paper 'The growth of nodule bacteria in the expressed juices from legume roots bearing effective and ineffective nodules' by H K Chen, Hugh Nicol and Henry Gerard Thornton | July 1940 |
| RR/68/109 | Referee's report by Vernon Herbert Blackman, on a paper 'Competition between related strains of nodule bacteria and its influence on infection of the legume host' by Hugh Nicol and Henry Gerard Thornton | 13 March 1941 |