| RefNo | Title | Date |
| EC/1948/09 | Heitler, Walter Heinrich: certificate of election to the Royal Society | |
| PB/1/33/1/4 | Nobel Prize | 1948 |
| MM/22/58 | Letter from Walter Heinrich Heitler, Institut fur Theoretische Physik der Universitat Zurich, to D G Kendall | 15 March 1968 |
| IM/GA/WS/3275 | Heitler, Walter Heinrich | 1948 |
| RR/73/263 | Referee's report by Walter Heinrich Heitler, on a paper 'The quantum mechanics of non-holonomic systems' by R J Eden | 1 November 1950 |
| RR/72/106 | Referee's report by Walter Heinrich Heitler, on a paper 'Heisenberg’s S matrix for a system of many particles' by R J Eden | 1949 |
| RR/59/84 | Referee's report by Ernest Rutherford, Baron Rutherford of Nelson, on a paper 'Time effects in the magnetic cooling method II—the conductivity of heat' by Herbert Fröhlich and Walter Heinrich Heitler | [1936] |
| RR/65/97 | Referee's report by Paul Adrien Maurice Dirac, on a paper 'On the nuclear forces and the magnetic moments of the neutron and the proton' by Herbert Fröhlich, Walter Heinrich Heitler and Nicholas Kemmer | February 1938 |
| RR/71/78 | Referee's report by Walter Heinrich Heitler, on a paper 'The indefinite metric in relativistic quantum mechanics' by K J Le Couteur | [1948] |
| RR/71/257 | Referee's report by Walter Heinrich Heitler, on a paper 'On the electrodynamic self-energy of the electron' by Edwin Ernest Salpeter | 1948 |
| RR/67/231 | Referee's report by Harrie Stewart Wilson Massey, on a paper 'Inner excited states of the proton and neutron' by Walter Heinrich Heitler and S T Ma | June 1940 |
| RR/72/107 | Referee's report by Walter Heinrich Heitler, on a paper 'The analytic behaviour of Heisenberg’s S matrix' by R J Eden | 1949 |
| RR/71/156 | Referee's report by Walter Heinrich Heitler, on a paper 'Non-central interactions between neutron and proton' by Tsi-ming Hu and Harrie Stewart Wilson Massey | [1948] |
| RR/69/162 | Referee's report by Norman Feather, on a paper 'The scattering of 4·2 MeV protons by deuterium, helium and other light elements' by Walter Heinrich Heitler, A N May and Cecil Frank Powell | 9 July 1946 |
| RR/71/33 | Referee's report by Walter Heinrich Heitler, on a paper 'Unified field theory in a curvature-free five-dimensional manifold' by J G Bennett, R L Brown and M W Thring | [1948] |
| RR/69/134 | Referee's report by Norman Feather, on a paper 'The elastic scattering of 6.5 MeV deuterons by deuterium, helium and other light elements' by K M Guggenheimer, Walter Heinrich Heitler and Cecil Frank Powell | 11 July 1946 |
| RR/64/55 | Referee's report by Patrick Maynard Stuart Blackett, Baron Blackett of Chelsea, on a paper 'On the analysis of cosmic rays' by Walter Heinrich Heitler | [April 1937] |
| RR/66/88 | Referee's report by James Chadwick, on a paper 'The photodisintegration of the deuteron in the meson theory' by Herbert Fröhlich, Walter Heinrich Heitler and B Kahn | [October 1939] |
| RR/66/87 | Referee's report by James Chadwick and Charles Galton Darwin, on a paper 'Deviation from the Coulomb law for the proton' by Herbert Fröhlich, Walter Heinrich Heitler and B Kahn | [March 1939] |
| RR/57/103 | Referee's report by Ralph Howard Fowler, on a paper 'The passage of fast electrons and the theory of cosmic showers' by Homi Jehangir Bhabha and Walter Heinrich Heitler | [December 1936] |
| RR/75/55 | Referee's report by Walter Heinrich Heitler, on a paper 'The temperature distribution along a radiating gas stream in which heat is being liberated by a chemical reaction' by M W Thring | 7 March 1951 |
| RR/73/262 | Referee's report by Walter Heinrich Heitler, on a paper 'The Hamiltonian dynamics of non-holonomic systems' by R J Eden | 1 November 1950 |
| RR/79/294 | Referee's report by Walter Heinrich Heitler, on a paper 'The field and radiation impedance of mechanical radiators on the free surface of a semi-infinite isotropic solid' by G F Miller and H Pursey | 30 November 1953 |
| RR/79/137 | Referee's report by Maurice Henry Lecorney Pryce, on a paper 'Theory of line breadth phenomena' by E Arnoust and Walter Heinrich Heitler | 28 July 1953 |