| RefNo | Title | Date |
| EC/1910/08 | Hardy, Godfrey Harold: certificate of election to the Royal Society | |
| NLB/67/412 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 16 December 1924 |
| NLB/46/409 | Copy letter from Robert William Frederick Harrison, to [Godfrey Harold] Hardy, Fellow of the Royal Society | 27 July 1912 |
| NLB/47/262 | Copy letter from Robert William Frederick Harrison to G [Godfrey] H [Harold] Hardy FRS | 4 January 1913 |
| NLB/48/378 | Copy letter from Robert William Frederick Harrison, to [Godfrey Harold] Hardy, Fellow of the Royal Society | 24 June 1913 |
| NLB/63/21 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society and FRS; to Professor [Godfrey Harold] Hardy, FRS | 15 June 1922 |
| NLB/51/89 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Godfrey Harold Hardy FRS | 8 December 1914 |
| NLB/51/101 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Godfrey Harold Hardy FRS | 12 December 1914 |
| NLB/51/161 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Godfrey Harold Hardy, FRS | 22 December 1914 |
| NLB/51/321 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Godfrey Harold Hardy, FRS | 12 February 1915 |
| RR/24/99 | Referee's report by Godfrey Harold Hardy, on a paper 'On the Cesàro convergence of restricted Fourier series' by William Henry Young | [March 1917] |
| RR/24/100 | Referee's report by Godfrey Harold Hardy, on a paper 'On the mode of approach to zero of the coefficients of a Fourier series' by William Henry Young | [March 1917] |
| NLB/59/781 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS; New College, Oxford | 11 November 1920 |
| RR/29/79 | Referee's report by Godfrey Harold Hardy, on a paper 'A mathematical theory of evolution, based on the conclusions of Dr. J. C. Willis' by George Udny Yule | December 1923 |
| NLB/58/455 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 7 May 1920 |
| NLB/58/523 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | [17 May 1920] |
| NLB/59/7 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [Godfrey Harold] Hardy Esquire, FRS; New College, Oxford | 9 July 1920 |
| NLB/58/800 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 21 June 1920 |
| NLB/55/340 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Geofrey Harold] Hardy Esq., FRS | 04 March 1918 |
| NLB/63/758 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS, New College, Oxford | 11 December 1922 |
| RR/40/18 | Referee's report by Godfrey Harold Hardy, on a paper 'The arithmetically reduced indefinite quadratic form in n-variables' by Louis Joel Mordell | January 1931 |
| NLB/59/779 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 10 November 1920 |
| RR/39/100 | Referee's report by Godfrey Harold Hardy, on a paper 'Kronecker's fundamental limit formula in the theory of numbers and elliptic functions, and similar theorems' by Louis Joel Mordell | [June 1929] |
| NLB/65/25 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 14 July 1923 |
| NLB/57/521 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to GH Hardy [Godfrey Harold] Esq. FRS | 24 November 1919 |
| NLB/61/30 | Copy letter from an unknown correspondent; to Professor [Godfrey Harold] Hardy, FRS | 29 April 1921 |
| NLB/60/492 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 15 February 1921 |
| NLB/61/436 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 8 July 1921 |
| NLB/60/782 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 5 April 1921 |
| NLB/57/674 | Copy letter from TE James, Clerk of the Royal Society; to GH [Godfrey Harold] Hardy Esq, FRS | 10 January 1920 |
| NLB/61/257 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 8 June 1921 |
| RR/24/91 | Referee's report by Thomas John I'Anson Bromwich and Godfrey Harold Hardy, on a paper 'On the numerical solution of integral-equations' by Edmund Taylor Whittaker | 28 February 1918 |
| NLB/61/565 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Geoffrey Harold] Hardy, FRS | 2 August 1921 |
| NLB/62/319 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 23 January 1922 |
| NLB/61/626 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 23 September 1921 |
| NLB/61/825 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 1 November 1921 |
| NLB/61/841 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 3 November 1921 |
| NLB/62/415 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 10 February 1922 |
| NLB/67/57 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 11 October 1924 |
| NLB/55/521 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Godfrey Harold] Hardy, Esq., FRS, Trinity College, Cambridge | 14 May 1918 |
| NLB/62/816 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 12 May 1922 |
| NLB/62/647 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 31 March 1922 |
| RR/65/68 | Referee's report by Godfrey Harold Hardy, on a paper 'On sums of positive integral kth powers' by Harold Davenport | January 1939 |
| NLB/62/837 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Geoffrey Harold] Hardy, FRS | 18 May 1922 |
| NLB/65/549 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 17 November 1923 |
| NLB/63/712 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 04 December 1922 |
| RR/20/164 | Referee's report by Godfrey Harold Hardy, on a paper 'On trigonometrical series whose cesàro partial summations oscillate finitely' by W H Young | June 1913 |
| NLB/63/511 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 01 November 1922 |
| RR/68/478 | Memoranda, on a paper 'Theorems concerning functions subharmonic in a strip' by Godfrey Harold Hardy and Werner Wolfgang Rogosinski | 4 October 1944 |
| NLB/63/870 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society and FRS; to Professor [Godfrey Harold] Hardy, FRS | 12 January 1923 |
| NLB/64/605 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professsor [Godfrey Harold] Hardy, FRS | 10 May 1923 |
| NLB/63/478 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Sidney Harmer, K.B.E., FRS | 26 October 1922 |
| NLB/65/627 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 30 November 1923 |
| NLB/66/599 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [Sydney] Chapman | 3 June 1924 |
| NLB/65/303 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 9 October 1923 |
| NLB/66/56 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [Godfrey Harold] Hardy, FRS | 14 February 1924 |
| NLB/65/515 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 13 November 1923 |
| NLB/65/754 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 18 December 1923 |
| NLB/66/99 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society to [Godfrey Harold] Hardy, FRS | 22 February 1924 |
| NLB/66/101 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [Godfrey Harold] Hardy | 22 February 1924 |
| NLB/65/420 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [Arthur Smith] Woodward, FRS; also sent to Professor [Godfrey Harold] Hardy; [Charles Thomson Rees] Wilson Esq.; [Joseph] Barcroft Esq; Dr [Frederick Frost] Blackman; Sir Frank [Watson] Dyson; [William] Bateson, Esq.; Professor [John Bretland] Farmer; Professor [Frederick Gowland] Hopkins | 30 October 1923 |
| NLB/66/763 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Godfrey Harold] Hardy, FRS | 4 July 1924 |
| NLB/66/492 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Godfrey Harold] Hardy, FRS | 19 May 1924 |
| NLB/68/452 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS, Honourable Secretary of the London Mathematical Society; New College, Oxford | 13 July 1925 |
| NLB/67/42 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 8 October 1924 |
| NLB/71/403 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Godfrey Harold] Hardy, FRS | 3 May 1928 |
| NLB/69/649 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Godfrey Harold] Hardy, FRS | 9 July 1926 |
| NLB/71/281 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Godfrey Harold] Hardy, FRS | 14 March 1928 |
| NLB/71/467 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Godfrey Harold] Hardy, FRS | 2 June 1928 |
| NLB/72/491 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 13 November 1929 |
| NLB/71/587 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the President, Organization Committee of the International Congress of Mathematicians, Bologna [Italy] | 13 July 1928 |
| NLB/72/668 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 21 February 1930 |
| NLB/72/946 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 17 July 1930 |
| NLB/68/162 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy, FRS | 21 May 1925 |
| RR/22/135 | Referee's report by Godfrey Harold Hardy, on a paper 'Note on the existence of converging sequences in certain oscillating successions of functions' by William Henry Young | November 1915 |
| RR/19/149 | Referee's report by Godfrey Harold Hardy, on a paper 'On the multiplication of successions of Fourier constants' by William Henry Young | [July 1912] |
| RR/24/97 | Referee's report by Godfrey Harold Hardy, on a paper 'On the series of Legendre' by William Henry Young | [November 1917] |
| RR/19/150 | Referee's report by Godfrey Harold Hardy, on a paper 'On the new theory of integration' by William Henry Young | [January 1913] |
| NLB/65/231 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [William] Bateson, Esq., FRS; also sent to Professor [Alfred] Fowler, Professor [Godfrey Harold] Hardy, Dr [Frederick Frost] Blackman, Professor [John Bretland] Farmer, Professor [Frederick Gowland] Hopkins, Dr [Arthur] Smith Woodward, Dr [Frank Watson] Dyson, [Charles Thomson Rees] Wilson Esq., [Joseph] Barcroft Esq. | 24 September 1923 |
| NLB/65/722 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to James Hopwood Jeans, Secretary of the Royal Society | 12 December 1923 |
| NLB/72/869 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to C. F. Hodgson Esq.; Newton Street, Kingsway, W.C.1. | 10 June 1930 |
| IM/001942 | Hardy, Godfrey Harold | nd |
| RR/29/33 | Referee's report by Godfrey Harold Hardy, on a paper 'On the thirteen semi-regular solids of Archimedes, and on their development by the transformation of certain plane configurations' by D'arcy Wentworth Thompson | October 1924 |
| RR/68/151 | Letter from Godfrey Harold Hardy, to Alfred Charles Glyn Egerton, regarding a paper 'The summation of infinite harmonic series' by Frederick Soddy | 19 August 1941 |
| NLB/69/386 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [Godfrey Harold] Hardy, FRS | 25 March 1926 |
| NLB/70/877 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Godfrey Harold] Hardy FRS; Professor [Archibald Vivian] Hill; Sir Sidney [Frederic] Harmer; Dr [] Pickard; Sir [] Edgeworth David; Professor [Robert Howson] Forsyth; Professor [Horace] Lamb; Sir James Walker | 27 October 1927 |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |
| RR/39/54 | Referee's report by Godfrey Harold Hardy, on a paper 'The polytopes with regular-prismatic vertex figures' by Harold Scott Macdonald Coxeter | [February 1930] |
| RR/68/152 | Referee's report by Godfrey Harold Hardy, on a paper 'The summation of infinite harmonic series' by Frederick Soddy | [August 1941] |
| RR/68/256 | Letter from Godfrey Harold Hardy, to John David Griffith Davies, regarding a paper 'The summation of infinite harmonic series' by Frederick Soddy | 9 September 1942 |
| RR/26/43 | Referee's report by Godfrey Harold Hardy, on a paper 'A simple extension of Fourier's integral theorem and some physical applications, in particular to the theory of quanta' by Ralph Howard Fowler | 12 June 1921 |
| RR/26/91 | Referee's report by Godfrey Harold Hardy, on a paper 'The summation of series' by Hector Munro Macdonald | 1 November 1921 |
| RR/26/97 | Referee's report by Godfrey Harold Hardy, on a paper 'The design of repeating patterns' by Percy Alexander MacMahon and W P D MacMahon | [January 1922] |
| RR/57/27 | Referee's report by Godfrey Harold Hardy, on a paper 'The zeros of the Riemann Zeta-Function' by Edward Charles Titchmarsh | [May 1935] |