| Reference number | Title | Date |
| NLB/52/566 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to George Walker Walker Esquire, FRS | 15 January 1916 |
| NLB/49 | New Letter Book volume 49, copy letters sent from Royal Society administration | 27 October 1913-6 April 1914 |
| RR/15/276 | Letter from Arthur William Rucker,on a paper 'The application of the kinetic theory of gases to to electric, magnetic & optical properties of diatomic gases' by George Walker Walker to the author | 3 May 1901 |
| RR/16/128 | Referee's report by Charles Vernon Boys, on paper 'The dependence of the Refractive Index of gases on temperature' by George Walker Walker | March 1903 |
| RR/16/129 | Referee's report by Augustus Edward Hough Love, on a paper 'The Theory of Refraction in Gases'by George Walker Walker | 20 June 1903 |
| RR/16/130 | Referee's report by Joseph Larmor, on a paper 'The Theory of Refraction in Gases'by George Walker Walker | 13 June 1903 |
| RR/26/142 | Referee's report by Arthur Schuster, on a paper 'The problem of finite focal depth revealed by seismometers' by George Walker Walker | [April 1921] |
| NLB/51/614 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to George Walker Walker FRS | 7 May 1915 |
| NLB/23/1/713 | Copy letter from Robert William Frederick Harrison, to George Walker Walker, Aberdeen Conservative Club, Aberdeen | 8 January 1902 |
| NLB/23/1/721 | Copy letter from Joseph Larmor, to Mr George Walker Walker, [Fellow of the Royal Society] | 9 January 1902 |
| NLB/23/1/620 | Copy letter from Joseph Larmor, to George Walker Walker, [Fellow of the Royal Society], Trinity College, Cambridge | 16 December 1901 |
| NLB/23/1/675 | Copy letter from Joseph Larmor, to George Walker Walker, [Fellow of the Royal Society] | 27 December 1901 |
| NLB/27/112 | Copy letter from Joseph Larmor, to George Walker Walker, [Fellow of the Royal Society] | 2 July 1903 |
| RR/16/131 | Letter from George Walker Walker, on his paper 'The theory of refraction in gases' to Augustus Edward Hough Love | June 1903 |
| NLB/50/712 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society | 19 October 1914 |
| NLB/30/51 | Copy letter from Joseph Larmor, to George Walker Walker, [Fellow of the Royal Society] | January 1905 |
| NLB/30/511 | Copy letter from Joseph Larmor to George Walker Walker, [Fellow of the Royal Society] | 6 April 1905 |
| NLB/30/580 | Copy letter from Joseph Larmor, to George Walker Walker, [Fellow of the Royal Society] | 14 April 1905 |
| NLB/30/608 | Copy letter from Robert William Frederick Harrison, to George Walker Walker, [Fellow of the Royal Society], Physical Laboratory, The University, Glasgow | 17 April 1905 |
| MC/27/349 | Letter from George [Walker] Walker, The Observatory, Eskdalemuir, Langholm, Dumfries-shire, to Me [Rober] Harrison, [Royal Society] | 30 July 1912 |
| NLB/41/451 | Copy letter from Joseph Larmor, to [George Walker] Walker, [Fellow of the Royal Society] | 17 December 1909 |
| NLB/42/62 | Copy letter from Robert William Frederick Harrison to Dr W [William] N [Napier] Shaw FRS | 18 March 1910 |
| NLB/42/577 | Copy letter from Robert William Frederick Harrison to G [George] W [Walker] Walker FRS | 11 July 1910 |
| NLB/54/315 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Messrs Harrison & Sons | 30 March 1917 |
| NLB/52/239 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to George Walker Walker Esquire, FRS | 22 October 1915 |
| MC/28/288 | Letter from George [Walker] Walker, 63 Lensfield Road, Cambridge, to Mr [Robert] Harrison, [Royal Society] | 19 October 1913 |
| NLB/50/5 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society, c/o Magnetic Survery, Ordnance Survey, Southampton | 7 April 1914 |
| MC/28/139 | Letter from the Levelling Division, Ordnance Survey Office, Southampton, to [Robert] Harrison, [Royal Society] | 3 December 1913 |
| NLB/50/55 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society | 22 April 1914 |
| NLB/48/621 | Copy letter from Robert William Frederick Harrison, to Dr George Walker Walker, Fellow of the Royal Society | 11 August 1913 |
| NLB/48/658 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society | 5 September 1913 |
| NLB/50/207 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society | 22 May 1914 |
| NLB/50/115 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society | 4 May 1914 |
| NLB/50/307 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society | 12 June 1914 |
| NLB/51/732 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to George Walker Walker FRS | 11 June 1915 |
| NLB/51/438 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to G Walker Walker FRS | 19 March 1915 |
| NLB/51/818 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to George Walker Walker FRS | 5 July 1915 |
| NLB/50/810 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society | 10 November 1914 |
| NLB/51/527 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to George Walker Walker FRS | 16 April 1915 |
| NLB/50/686 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society | 12 October 1914 |
| NLB/51/597 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to George Walker Walker | 3 May 1915 |
| NLB/51/160 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to George Walker Walker, FRS | 22 December 1914 |
| NLB/52/161 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to the Manager of the Union Bank of Scotland; Hillhead Branch, Glasgow | 1 October 1915 |
| NLB/52/162 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to George Walker Walker, FRS | 1 October 1915 |
| NLB/52/271 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr. Charles Chree, FRS | 1 November 1915 |
| NLB/52/812 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Messrs Harrison & Sons | 28 February 1916 |
| NLB/52/854 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to George Walker Walker Esquire, FRS | 3 March 1916 |
| RR/22/128 | Referee's report by William Watson, on a paper 'A portable variometer for magnetic surveying' by George Walker Walker | December 1915 |
| NLB/54/350 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [George Walker] Walker Esquire, FRS; Heath Cottage, Boar's Hill. Oxford | 19 April 1917 |
| NLB/54/266 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to [George Walker] Walker Esquire, FRS | 19 March 1917 |
| NLB/54/752 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to [George Walker] Walker Esquire, FRS | 10 September 1917 |
| RR/22/127 | Referee's report by Arthur Stanley Eddington, on a paper 'Some problems illustrating the forms of nebulœ' by George Walker Walker | April 1915 |
| RR/21/155 | Referee's report by Edmund Taylor Whittaker, on a paper 'Approximately permanent electronic orbits and the origin of spectral series' by George Walker Walker | [November 1914] |
| RR/22/126 | Referee's report by Frank Watson Dyson, on a paper 'Some problems illustrating the forms of nebulœ' by George Walker Walker | March 1915 |
| RR/24/85 | Referee's report by Horace Lamb, on a paper 'Surface reflexion of earthquake waves' by George Walker Walker | [August 1917] |
| RR/25/57 | Referee's report by George Walker Walker, on a paper 'The measurement of magnetic susceptibilities of low order' by Ernest Wilson | 29 October 1918 |
| MC/32/267 | Letter from George [Walker] Walker, Admiral House, Peverell Terrace, Porthleven, Cornwall, to Mr [Robert] Harrison, [Royal Society] | 10 August 1917 |
| MC/31/31 | Memorandum by Colonel C.F Close C.M.G, R.E, and Mr George [Walker] Walker F.R.S on the Magnetic Resurvey of the British Isles | 15 November 1915 |
| NLB/55/599 | Copy letter from [Dr.] Arthur Schuster, Secretary of the Royal Society; to The Director General, Ordnance Survey Office, Southampton | 21 June 1918 |
| NLB/56/444 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [George Walker] Walker Esquire, FRS | 13 February 1919 |
| NLB/53/501 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [George Walker] Walker, FRS | 16 October 1916 |
| NLB/53/556 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [George Walker] Walker, FRS | 30 October 1916 |
| NLB/51 | New Letter Book volume 51, copy letters sent from Royal Society administration | 18 November 1914-9 July 1915 |
| NLB/61/749 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Charles Vernon] Boys Esquire, FRS | 21 October 1921 |
| NLB/61/386 | Copy letter from an unknown correspondent; to [George Walker] Walker Esquire, FRS; 27 Anglesey Crescent, Alverstoke, Hants | 30 June 1921 |
| NLB/55/624 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Colonel] C.F. Close, C.B., C.M.G., Director General, Ordnance Survey, Southampton | 28 June 1918 |
| NLB/55/581 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to unknown correspondent | 17 June 1918 |
| EC/1913/15 | Walker, George Walker: certificate of election to the Royal Society | |
| RR/15/275 | Referee's report by Joseph John Thomson, on a paper 'The application of the kinetic theory of gases to to electric, magnetic & optical properties of diatomic gases' by George Walker Walker | April 1901 |
| NLB/48/259 | Copy letter from Arthur Schuster, to Dr George [Walker] Walker, Fellow of the Royal Society, 63 Lensfield Road, Cambridge | 5 June 1913 |
| NLB/50/535 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society | 25 July 1914 |
| RR/24/86 | Referee's report by Joseph Larmor, on a paper 'The effective inertia of electrified systems moving with high speed' by George Walker Walker | 5 April 1917 |
| NLB/60/879 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to [George Walker] Walker Esquire, FRS | 21 April 1921 |
| NLB/50/517 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society, 63 Lensfield Road, Cambridge | 23 July 1914 |
| NLB/54 | New Letter Book volume 54, copy letters sent from Royal Society administration | 10 January 1917-2 November 1917 |
| RR/24/73 | Referee's report by George Walker Walker, on a paper 'The support and origin of the mountains of central Asia' by Richard Dixon Oldham | [May 1917] |
| NLB/52 | New Letter Book volume 52, copy letters sent from Royal Society administration | 9 July 1915-8 March 1916 |
| RR/16/127 | Referee's report by William Ramsay, on paper 'The dependence of the Refractive Index of gases on temperature' by George Walker Walker | March 1903 |
| RR/15/274 | Referee's report by George Hartley Bryan, on a paper 'The application of the kinetic theory of gases to to electric, magnetic & optical properties of diatomic gases' by George Walker Walker | March 1901 |
| RR/24/84 | Referee's report by Henry Reginald Arnulph Mallock, on a paper 'Surface reflexion of earthquake waves' by George Walker Walker | 4 August 1917 |
| RR/15/277 | Second referee's report by Joseph John Thomson, on a paper 'The application of the kinetic theory of gases to to electric, magnetic & optical properties of diatomic gases' by George Walker Walker | 12 December 1901 |
| RR/15/273 | Referee's report by Joseph Larmor, on a paper 'The application of the kinetic theory of gases to to electric, magnetic & optical properties of diatomic gases' by George Walker Walker | 8 February 1901 |
| MC/33/168 | Letter from George [Walker] Walker, Heath Cottage, Boar's Hill, Oxford, to Mr [Robert] Harrison, [Royal Society] | 11 May 1918 |
| MC/28/216 | Letter from [John Henry] Poynting, 2 The Myrths Sidmouth, to Mr [Robert] Harrison, [Royal Society] | 28 March 1913 |
| MC/28/138 | Letter from the Levelling Division, Ordnance Survey Office, Southampton, to [Robert] Harrison, [Royal Society] | 24 November 1913 |
| MC/29/271 | Letter from George [Walker] Walker, 63 Lensfield Road, Cambridge, to Mr [Robert] Harrison, [Royal Society] | 30 September 1914 |
| MC/28/286 | Letter from George [Walker] Walker, 63 Lensfield Road, Cambridge, to Mr [Robert] Harrison, [Royal Society] | 8 August 1913 |
| MC/28/287 | Letter from George [Walker] Walker, 63 Lensfield Road, Cambridge, to Mr [Robert] Harrison, [Royal Society] | 28 September 1913 |
| NLB/48/620 | Copy letter from John Rose Bradford, to Dr George Walker Walker, Fellow of the Royal Society | 11 August 1913 |
| MC/29/267 | Letter from L.C Bromley, Treasury, S.W, to [Robert] Harrison, [Royal Society] | 25 June 1914 |
| MC/29/272 | Letter from George [Walker] Walker, 63 Lensfield Road, Cambridge, to Mr [Robert] Harrison, [Royal Society] | 14 October 1914 |
| NLB/50/670 | Copy letter from Robert William Frederick Harrison, to [George Walker] Walker, Fellow of the Royal Society | 8 October 1914 |
| MC/30/210 | Letter from Geroge [Walker] Walker, 63 Lensfield Road, Cambridge, to Mr [Robert] Harrison, [Royal Society] | 14 November 1915 |
| MC/31/223 | Letter from George [Walker] Walker, Heath Cottage, Boar's Hill, Oxford, to Mr [Robert] Harrison, [Royal Society] | 18 October 1916 |
| MC/31/224 | Letter from George [Walker] Walker, Heath Cottage, Boar's Hill, Oxford, to Mr [Robert] Harrison, [Royal Society] | 19 November 1916 |
| MC/31/222 | Letter from George [Walker] Walker, Heath Cottage, Boar's Hill, Oxford, to Mr [Robert] Harrison, [Royal Society] | 12 June 1916 |
| MC/32/164 | Letter from [Horace] Lamb, 6 Wilbraham [Road], Fallowfield, Manchester, to Mr [Robert] Harrison, [Royal Society] | 14 July 1917 |
| MC/32/264 | Letter from George [Walker] Walker, Heath Cottage, Boar's Hill, Oxford, to Mr [Robert] Harrison, [Royal Society] | 16 February 1917 |
| MC/32/268 | Letter from George [Walker] Walker, Red Lion Inn, Broughton, to Mr [Robert] Harrison, [Royal Society] | 8 September 1917 |
| NLB/54/137 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to [George Walker] Walker Esquire, FRS | 15 February 1917 |
| NLB/54/658 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [George Walker] Walker Esquire, FRS | 18 July 1917 |
| MC/32/265 | Letter from [Ernest Clifford] Hardy, Hydrographic Department, Admiralty, London, S.W, to The Secretaries of the Royal Society, Burlington House, W | 13 February 1917 |
| MC/33/153 | Letter from [George Adolphus] Schott, Mintaro, North [Road], Aberystwyth, to The Secretaries, Royal Society | 15 April 1918 |
| MC/32/266 | Letter from George [Walker] Walker, Heath Cottage, Boar's Hill, Oxford, to Mr [Robert] Harrison, [Royal Society] | 17 July 1917 |
| MC/33/128 | Letter from the Director-General of the Ordnance Survey, Ordnance Survey Office, Southampton, to The Assistant Secretary, The Royal Society | 22 May 1918 |