| Reference number | Title | Date |
| EC/1895/05 | Bryan, George Hartley: certificate of election to the Royal Society | |
| IM/Maull/000629 | Bryan, George Hartley | nd |
| NLB/12/104 | Copy letter from Theodore E James, to Messrs Harrison & Sons | [6 December 1895] |
| NLB/11/628 | Copy letter from an unknown correspondent, to Messrs Harrison & Sons | 19 August 1895 |
| NLB/19/418 | Copy letter from A L K, to Messrs Harrison & Sons | 28 September 1899 |
| NLB/12/106 | Copy letter from Theodore E James, to George Hartley Bryan, Fellow of the Royal Society | 7 December 1895 |
| RR/15/335 | Referee's report by George Hartley Bryan, on a paper 'On an approximate solution for the bending of a beam of rectangular cross-section under any system of load, with special reference to points of concentrated or discontinuous loading' by Louis Napoleon George Filon | August 1902 |
| NLB/21/133 | Copy letter from Theodore E James, to George Hartley Bryan, Fellow of the Royal Society | 14 August 1900 |
| NLB/19/453 | Copy letter from Robert William Frederick Harrison, to Professor George Hartley Bryan, Fellow of the Royal Society, Plas Gwyn, Bangor, North Wales | 6 October 1899 |
| NLB/20/265 | Copy letter from Robert William Frederick Harrison, to Professor George Hartley Bryan, Fellow of the Royal Society, Plas Gwyn, Bangor, North Wales | 9 March 1900 |
| NLB/20/448 | Copy letter from Robert William Frederick Harrison, to Dr George Johnstone Stoney, Fellow of the Royal Society | 26 April 1900 |
| NLB/21/562 | Copy telegram from Robert William Frederick Harrison, to Professor George Hartley Bryan, Plas Gwyn, Bangor | [10 December 1900] |
| NLB/21/500 | Copy letter from Robert William Frederick Harrison, to Professor George Hartley Bryan, Fellow of the Royal Society | 28 November 1900 |
| NLB/21/723 | Copy letter from Robert William Frederick Harrison, to Professor George Hartley Bryan, Fellow of the Royal Society | 18 January 1901 |
| NLB/24/298 | Copy letter from Robert William Frederick Harrison, to George Hartley Bryan, Fellow of the Royal Society | [April 1902] |
| NLB/25/225 | Copy letter from Theodore E James, to Professor George Hartley Bryan, Fellow of the Royal Society, Plas Gwyn, Bangor, North Wales | 25 September 1902 |
| NLB/27/235 | Copy letter from Joseph Larmor, to Professor George Hartley Bryan, Fellow of the Royal Society | 18 July 1903 |
| NLB/33/719 | Copy letter from Robert William Frederick Harrison, to Professor George Hartley Bryan, Fellow of the Royal Society | 26 October 1906 |
| NLB/39/149 | Copy letter from Robert William Frederick Harrison to Harrison & Sons | 2 December 1908 |
| NLB/34/396 | Copy letter from Robert William Frederick Harrison, to Professor George Hartley Bryan, Fellow of the Royal Society | 14 January 1907 |
| NLB/44/324 | Copy letter from Robert William Frederick Harrison to Professor George Hartley Bryan FRS | 19 June 1911 |
| NLB/50/157 | Copy letter from Robert William Frederick Harrison, to Professor [George Hartley] Bryan, Fellow of the Royal Society | 9 May 1914 |
| NLB/50/100 | Copy letter from Robert William Frederick Harrison, to Professor [George Hartley] Bryan, Fellow of the Royal Society | 1 May 1914 |
| NLB/50/225 | Copy letter from Robert William Frederick Harrison, to Professor [George Hartley] Bryan, Fellow of the Royal Society | 26 May 1914 |
| NLB/50/138 | Copy letter from Robert William Frederick Harrison, to Professor [George Hartley] Bryan, Fellow of the Royal Society | 6 May 1914 |
| NLB/53/345 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [George Hartley] Bryan, FRS | 18 July 1916 |
| NLB/50/825 | Copy letter from Robert William Frederick Harrison, to Professor [George Hartley] Bryan, Fellow of the Royal Society | 13 November 1914 |
| NLB/51/15 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor George Hartley Bryan FRS | 20 November 1914 |
| IM/000630 | Bryan, George Hartley | 1922 |
| NLB/54/369 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Dr. Dugald Clerk, Chairman of the Applied Sciences Committee and FRS | 25 April 1917 |
| AP/79/15 | Unpublished paper, 'Convex contact and rolling resistance' by Herbert Chatley | 1917 |
| RR/10/247 | Referee's report by Norman Macleod Ferrers, on a paper 'The waves on a rotating liquid spheroid of finite ellipticity' by George Hartley Bryan | 30 December 1888 |
| NLB/59/640 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [George Hartley] Bryan, FRS | 27 October 1920 |
| RR/12/285 | Referee's report by George Hartley Bryan, on a paper 'On the applications of the kinetic theory to dense gases' by Samuel Hawksley Burbury | 24 June 1895 |
| RR/15/317 | Referee's report by George Hartley Bryan, on a paper 'The stability of the pear-shaped figure of equilibrium of a rotating mass of liquid' by George Howard Darwin | August 1902 |
| RR/12/287 | Letter from George Hartley Bryan, to William Thomson, 1st Baron Kelvin, regarding a paper 'On the applications of the kinetic theory to dense gases' by Samuel Hawksley Burbury | 18 July 1895 |
| RR/17/191 | Referee's report by George Hartley Bryan, on a paper 'The gravitational stability of the Earth' by Augustus Edward Hough Love | [February 1907] |
| NLB/60/139 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [George Hartley] Bryan, FRS | 14 December 1920 |
| RR/15/24 | Referee's report by John William Strutt, Lord Rayleigh, on a paper 'The kinetic theory of planetary atmospheres. Part I' by George Hartley Bryan | June 1900 |
| RR/15/26 | Referee's report by George Hartley Bryan, on a paper 'Elastic solids at rest or in motion in a liquid' by Charles Chree | February 1901 |
| MC/35/27 | Letter from [George Hartley] Bryan, University College of North Wales, Bangor, to the Royal Society | 11 November 1924 |
| NLB/62/772 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [George Hartley] Bryan, FRS | 4 May 1922 |
| NLB/62/620 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [George Hartley] Bryan, FRS | 24 March 1922 |
| NLB/62/685 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [George Hartley] Bryan, FRS | 6 April 1922 |
| NLB/62/716 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [George Hartley] Bryan, FRS | 11 April 1922 |
| RR/12/286 | Two letters from William Thomson, Lord Kelvin, to George Hartley Bryan, regarding a paper 'On the applications of the kinetic theory to dense gases' by Samuel Hawksley Burbury | 6 July 1895 |
| NLB/65/573 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Kennedy Joseph Previte] Orton; Chemical Department, University College of North Wales, Bangor | 22 November 1923 |
| NLB/67/232 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [George Hartley] Bryan, FRS | 15 November 1924 |
| NLB/72/433 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Leonard] Bairstow, CBE, FRS | 21 October 1929 |
| NLB/73/56 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Leonard] Bairstow, C.B.E., FRS | 7 November 1930 |
| NLB/21/47 | Copy letter from Michael Foster, to Professor George Hartley Bryan, Fellow of the Royal Society | 20 July 1900 |
| NLB/21/292 | Copy letter from Robert William Frederick Harrison, to Professor George Hartley Bryan, Fellow of the Royal Society | [22 October 1900] |
| RR/21/44 | Referee's report by Horace Lamb, on a paper 'Discontinuous fluid motion past a bent plane, with special reference to aeroplane problems' by George Hartley Bryan and Robert Jones | [January 1915] |
| RR/10/246 | Referee's report by George Howard Darwin, on a paper 'The waves on a rotating liquid spheroid of finite ellipticity' by George Hartley Bryan | 5 November 1888 |
| RR/21/45 | Referee's report by Augustus Edward Hough Love, on a paper 'Discontinuous fluid motion past a bent plane, with special reference to aeroplane problems' by George Hartley Bryan and Robert Jones | 9 December 1914 |
| RR/15/22 | Referee's report by George Johnstone Stoney, on a paper 'The kinetic theory of planetary atmospheres. Part I' by George Hartley Bryan | May 1900 |
| 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/16/26 | Referee's report by Horace Lamb, on a paper 'The longitudinal stability of aerial gliders' by George Hartley Bryan and W E Williams | July 1903 |
| RR/15/23 | Referee's report by Joseph Larmor, on a paper 'The kinetic theory of planetary atmospheres. Part I' by George Hartley Bryan | 20 May 1900 |
| RR/16/27 | Referee's report by Augustus Edward Hough Love, on a paper 'The longitudinal stability of aerial gliders' by George Hartley Bryan and W E Williams | 10 July 1903 |
| PP/15/26 | Paper, 'On the stability of a rotating spheroid of perfect liquid' by G H [George Hartley] Bryan | 1890 |
| RR/15/408 | Referee's report by George Hartley Bryan, on a paper 'The distribution of magnetism as affected by induced currents in an iron cylinder when rotated in a magnetic field' by Ernest Wilson | 15 January 1902 |
| MS/603/1/176 | Letter from G H [George Hartley] Bryan, Plas Gwyn, Bangor, to [Joseph] Larmor | 14 March 1904 |
| MS/603/1/175 | Letter from G H [George Hartley] Bryan, University College of North Wales, Bangor, to 'Dear Sirs', the Royal Society | 9 March 1904 |
| MS/603/1/178 | Letter from G H [George Hartley] Bryan, Plas Gwyn, Bangor, to [Joseph] Larmor] | 18 June 1919 |
| MS/603/1/174 | Letter from G H [George Hartley] Bryan, Thornlea, Trumpington Road, Cambridge, to [Joseph] Larmor | 18 January 1891 |
| MS/603/1/177 | Letter from G H [George Hartley] Bryan, Plas Gwyn, Bangor, N. Wales, to Sir George Darwin | 28 January 1908 |
| MC/26/41 | Letter from [George Hartley] Bryan, University College of North Wales, Bangor, to The Assistant [General] Secretary, [Royal Society] | 20 June 1911 |
| MC/21 | Volume 21 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1906 |
| MC/27/43 | Letter from [George Hartley] Bryan, Plas Gwyn, Bangor, N. Wales, to the [Royal Society] | 18 May 1912 |
| NLB/44/720 | Copy letter from Robert William Frederick Harrison to Professor G [George] H [Hartley] Bryan FRS | 27 October 1911 |
| MC/21/83 | Letter from [George Hartley] Bryan, Plas Gwyn, Bangor, to the Royal Society | 27 October 1906 |
| NLB/33/742 | Copy letter from Robert William Frederick Harrison, to Professor George Hartley Bryan, Fellow of the Royal Society | 29 October 1906 |
| MC/30/35 | Letter from [George Hartley] Bryan, Plas Gwyn, Bangor, to the [Royal Society] | 30 January 1915 |
| MC/35 | Volume 35 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1921 |
| MC/36 | Volume 36 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1922 |
| MC/36/15 | Letter from [George Hartley] Bryan, Plas Gwyn, Bangor, North Wales, to the Royal Society | 23 March 1922 |
| MC/36/16 | Letter from [George Hartley] Bryan, Plas Gwyn, Bangor, North Wales, to the Royal Society | 4 April 1922 |