| Reference number | Title | Date |
| PB/3/1/3/3/12 | Correspondece with Thomas Cowling following Blackett's 1947 paper on magnetism | April-December 1947 |
| EC/1947/06 | Cowling, Thomas George: certificate of election to the Royal Society | |
| IM/GA/WS/2687 | Cowling, Thomas George | 1946 |
| IM/GA/WRS/8391 | Cowling, Thomas George | nd |
| IM/000971 | Cowling, Thomas George | c 1985 |
| MS/837 | Thomas George Cowling papers | 1964-1981 |
| RR/72/44 | Letter from Thomas George Cowling, on two papers 'Electronic wave functions - I. A general method of calculation for the stationary states of any molecular system' and 'Electronic wave functions II. A calculation for the ground state of the beryllium atom' by Samuel Francis Boys to D C Martin, Assistant Secretary of the Royal Society | 19 September 1949 |
| RR/68/31 | Letter from George Paget Thomson, to Sydney Chapman, regarding a paper 'The velocity of diffusion in a mixed gas; the second approximation' by Sydney Chapman and Thomas George Cowling | 14 March 1941 |
| RR/68/452 | Referee's report by David Brunt, on a paper 'The electrical conductivity of an ionized gas in a magnetic field, with applications to the solar atmosphere and the ionosphere' by Thomas George Cowling | [1944] |
| RR/71/285 | Referee's report by Thomas George Cowling, on a paper 'Kinetic theory of diffusion in gases and liquids' by L M Yang | 1948 |
| RR/71/124 | Letter from Thomas George Cowling, to Mr Graddon, regarding a paper 'The thermal equilibrium at the tropopause and the temperature of the lower stratosphere' by R M Goody | [August 1948] |
| RR/71/237 | Referee's report by Thomas George Cowling, on a paper 'The induction of electric currents in a non-uniform ionosphere' by A A Ashour and A T Price | June 1948 |
| PB/9/1/101/3 | Royal Society correspondence | 1960-1961 |
| RR/72/217 | Referee's report by Thomas George Cowling, on a paper 'The derivation of a model solar chromosphere from radio data. I. The intensity and distribution of radiation. II. Evaluation of electron temperatures and densities' by J H Piddington | 1949 |
| RR/71/68 | Referee's report by Thomas George Cowling, on a paper 'The lunar atmospheric tide at twenty-seven stations widely distributed over the globe' by Sydney Chapman and K K Tschu | [1948] |
| RR/71/48 | Referee's report by Thomas George Cowling, on a paper 'The structure of the reaction zone in a flame' by Samuel Francis Boys and J Corner | 6 October 1948 |
| RR/71/125 | Referee's report by Thomas George Cowling, on a paper 'The thermal equilibrium at the tropopause and the temperature of the lower stratosphere' by R M Goody | [1948] |
| MDA/C/10/3 | Correspondence of the Gassiot Committee | 1947-1953 |
| RR/72/43 | Letter from Thomas George Cowling, on two papers 'Electronic wave functions - I. A general method of calculation for the stationary states of any molecular system' and 'Electronic wave functions II. A calculation for the ground state of the beryllium atom' by Samuel Francis Boys to D C Martin, Assistant Secretary of the Royal Society | 13 September 1949 |
| RR/68/32 | Memoranda, on a paper 'The velocity of diffusion in a mixed gas; the second approximation' by Sydney Chapman and Thomas George Cowling | 26 April 1941 |
| RR/72/215 | Letter from Thomas George Cowling, on a paper 'The derivation of a model solar chromosphere from radio data. I. The intensity and distribution of radiation. II. Evaluation of electron temperatures and densities' by J H Piddington to the Chairman of the Physics Sectional Committee | 1949 |
| RR/72/216 | Letter from Thomas George Cowling, on a paper 'The derivation of a model solar chromosphere from radio data. I. The intensity and distribution of radiation. II. Evaluation of electron temperatures and densities' by J H Piddington to D C Martin, Assistant Secretary of the Royal Society | 9 September 1949 |
| RR/73/105 | Referee's report by Thomas George Cowling, on a paper 'The westward drift of the Earth's magnetic field' by Edward Crisp Bullard, Cynthia Freedman, H Gellman and Jo Nixon | 17 May 1950 |
| RR/73/104 | Letter from Edmund Clifton Stoner, on a paper 'The westward drift of the Earth's magnetic field' by Edward Crisp Bullard, Cynthia Freedman, H Gellman and Jo Nixon to the Assistant Secretary of the Royal Society [D C Martin] | 11 May 1950 |