| RefNo | Title | Date |
| EC/1903/11 | Sampson, Ralph Allen: certificate of election to the Royal Society | |
| NLB/37/473 | Copy postcard from the Royal Society to Professor R [Ralph] A [Allen] Sampson, Fellow of the Royal Society, Observatory House, Durham | 25 March 1908 |
| RR/19/113 | Referee's report by Edmund Taylor Whittaker, on a paper 'A new treatment of optical aberrations' by Ralph Allen Sampson | [May 1912] |
| RR/17/291 | Referee's report by Ralph Allen Sampson, on a paper 'The isothermal layer of the atmosphere and atmospheric radiation' by Ernest Gold | 13 October 1908 |
| NLB/30/99 | Copy letter from Joseph Larmor, to Arthur Robert Hinks, Sir William Henry Mahoney Christie, Professor George Howard Darwin, Mr Frank Watson Dyson, and Professor Ralph Allen Sampson, [Fellows of the Royal Society] | 27 January 1905 |
| NLB/31/428 | Copy letter from Robert William Frederick Harrison, to Professor Ralph Allen Sampson, Fellow of the Royal Society, Observatory House, Durham | [15] September 1905 |
| NLB/42/632 | Copy letter from Robert William Frederick Harrison to Professor R [Ralph] A [Allen] Sampson FRS | 21 July 1910 |
| NLB/38/623 | Copy letter from Joseph Larmor, to Professor Ralph Allen Sampson, Fellow of the Royal Society | 13 October 1908 |
| NLB/47/21 | Copy letter from Joseph Larmor to [Ralph Allen] Sampson | 14 November 1912 |
| NLB/47/380 | Copy letter from Arthur Schuster, Secretary of the Royal Society to Professor R [Ralph] A [Allen] Sampson FRS | 24 January 1913 |
| NLB/47/493 | Copy letter from Robert William Frederick Harrison to Dr R [Ralph] A [Allen] Sampson FRS | 10 February 1913 |
| NLB/50/46 | Copy letter from Robert William Frederick Harrison, to Professor [Ralph Allen] Sampson, Fellow of the Royal Society | 22 April 1914 |
| NLB/48/478 | Copy letter from Robert William Frederick Harrison, to Professor [Ralph Allen] Sampson, Fellow of the Royal Society | 10 July 1913 |
| NLB/50/12 | Copy letter from Robert William Frederick Harrison, to Professor [Ralph Allen] Sampson, Fellow of the Royal Society | 8 April 1914 |
| NLB/52/296 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor Ralph Allen Sampson, FRS | 4 November 1915 |
| NLB/52/201 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir William Crookes, President of the Royal Society | 13 October 1915 |
| NLB/52/203 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir William Crookes, President of the Royal Society | 13 October 1915 |
| NLB/52/292 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Professor Ralph Allen Sampson, FRS | 2 November 1915 |
| RR/17/341 | Referee's report by Ralph Allen Sampson, on a paper 'Solution of various differential equations by arithmetical finite differences' by Lewis Fry Richardson | September 1908 |
| RR/22/60 | Referee's report by Ralph Allen Sampson, on a paper 'On the conditions under which the "probable errors" of frequency distributions have a real significance' by L Isserlis | 2 July 1915 |
| RR/19/114 | Referee's report by Herbert Hall Turner, on a paper 'On a cassegrain reflector with corrected field' by Ralph Allen Sampson | 16 January 1913 |
| RR/19/115 | Referee's report by Edmund Taylor Whittaker, on a paper 'On a cassegrain reflector with corrected field' by Ralph Allen Sampson | [January 1913] |
| NLB/53/369 | Copy letter from [Robert William Frederick Harrison], Assistant Secretary of the Royal Society; to Professor [Ralph Allen] Sampson, FRS | 21 July 1916 |
| RR/26/101 | Referee's report by Ralph Allen Sampson, on a paper 'The physical meaning of spherical aberration' by L C Martin | [July 1921] |
| RR/11/87 | Letter from Joseph John Thomson, on a paper 'On Stokes’s current function' by Ralph Allen Sampson | 10 July 1891 |
| RR/62/73 | Referee's report by Ralph Allen Sampson, on a paper 'On experimental and theoretical problems of photography I and II' by J E P Wagstaff and W A Prowse | [1937] |
| RR/11/88 | Letter from Joseph John Thomson, on a paper 'On Stokes’s current function' by Ralph Allen Sampson | 24 August 1891 |
| RR/18/106 | Referee's report by Ralph Allen Sampson, on a paper 'The pupil of an optical system with regard to perspective' by Conrad Beck | 3 July 1911 |
| RR/37/27 | Referee's report by Ralph Allen Sampson, on a paper 'Solid dipleidoscope prisms' Charles Vernon Boys | April 1928 |
| RR/20/126 | Referee's report by Ralph Allen Sampson, on a paper 'Notes on a generalization of the sine conditions and on the ideal lens' by T Smith | 4 November 1912 |
| RR/37/28 | Referee's report by Ralph Allen Sampson, on a paper 'Solid dipleidoscope prisms - Supplement' by Charles Vernon Boys | July 1928 |
| RR/27/59 | Referee's report by Ralph Allen Sampson, on a paper 'The cause of Encke's division in Saturn's ring' by George Ridesdale Goldsbrough | March 1922 |
| RR/17/440 | Referee's report by Ralph Allen Sampson, on a paper 'On the determination of the chief correlations between collaterals in the case of a simple Mendelian population mating at random' by E C Snow | August 1910 |
| RR/39/112 | Referee's report by Alfred Fowler, on a paper 'On three Huygens Lenses in the possession of the Royal Society of London' by Ralph Allen Sampson and Alexander Eugen Conrady | [April 1929] |
| RR/19/26 | Referee's report by Ralph Allen Sampson, on a paper 'Some phenomena of sunspots and of terrestrial magnetism at Kew Observatory' by Charles Chree | [April 1912] |
| NLB/61/454 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Ralph Allen] Sampson, FRS | 8 July 1921 |
| NLB/60/770 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Ralph Allen] Sampson, FRS | 4 April 1921 |
| NLB/61/494 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Ralph Allen] Sampson, FRS | 12 July 1921 |
| NLB/68/550 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Ralph Allen] Sampson, FRS | 6 August 1925 |
| RR/63/121 | Second referee's report by Ralph Allen Sampson, on a paper 'Experimental and theoretical problems of photography - I' by J E P Wagstaff and W A Prowse | 11 December 1936 |
| RR/63/120 | Referee's report by Ralph Allen Sampson, on a paper 'Experimental and theoretical problems of photography - I' by J E P Wagstaff and W A Prowse | October 1936 |
| NLB/63/531 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Ralph Allen] Sampson, FRS | 03 November 1922 |
| NLB/63/868 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society and FRS; to Professor [Ralph Allen] Sampson, FRS | 12 January 1923 |
| NLB/68/456 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Ralph Allen] Sampson, FRS | 9 July 1925 |
| NLB/72/791 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [Ralph Allen] Sampson, FRS | 29 April 1930 |
| NLB/68/301 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Ralph Allen] Sampson, FRS | 15 June 1925 |
| NLB/68/819 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Ralph Allen] Sampson, FRS | 5 November 1925 |
| RR/29/31 | Referee's report by Ralph Allen Sampson, on a paper 'On the theory and testing of right-angled prisms' by John William Nicholson and F J Cheshire | March 1923 |
| NLB/66/577 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Albert Charles] Seward, FRS | 30 May 1924 |
| NLB/66/556 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [Ralph Allen] Sampson, FRS | 30 May 1924 |
| NLB/71/865 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Messrs T. P. Collings & Co. | 20 November 1928 |
| NLB/71/610 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Ralph Allen] Sampson, FRS | 25 July 1928 |
| CD/73/25 | Letter from [Ralph Allen] Sampson, Royal Observatory, Edinburgh, to [Herbert Hall] Turner | 4 February 1912 |
| CD/73/26 | Copy letter from [Ralph Allen Sampson], to William Wesley and Son [publishers] | 4 February 1912 |
| CD/73/13 | Letter from [Ralph Allen] Sampson, Royal Observatory, Edinburgh, to [J. A.] Hardcastle | 28 March 1911 |
| CD/73/20 | Letter from [Herbert Hall] Turner; Oxford, to [Ralph Allen] Sampson | 1 February 1912 |
| CD/73/28 | Letter from [Ralph Allen] Sampson, Royal Observatory, Edinburgh, to [Herbert Hall] Turner | 8 February 1912 |
| CD/73/22 | Letter from [Ralph Allen] Sampson, Royal Observatory, Edinburgh, to Joseph Larmor, Secretary of the Royal Society | 2 February 1912 |
| CD/73/16 | Letter from William Wesley and Son, Booksellers and Publishers, 28 Essex Street, Strand, London, to Professor [Ralph Allen] Sampson, Astronomer Royal for Scotland, Royal Observatory, Edinburgh | 23 January 1912 |
| CD/73/17 | Letter from William Wesley and Son, Booksellers and Publishers, 28 Essex Street, Strand, London, to Professor [Ralph Allen] Sampson, Astronomer Royal for Scotland, Royal Observatory, Edinburgh | 25 January 1912 |
| RR/16/116 | Referee's report by Ralph Allen Sampson, on a paper 'A practical method of computing the oblique foci of optical systems' by H Dennis Taylor | 11 January 1904 |
| RR/16/117 | Second referee's report by Ralph Allen Sampson, on a paper 'A practical method of computing the oblique foci of optical systems' by H Dennis Taylor | 18 January 1904 |
| RR/19/112 | Referee's report by Herbert Hall Turner, on a paper 'A new treatment of optical aberrations' by Ralph Allen Sampson | [April 1912] |
| RR/10/375 | Referee's report by Alfred Barnard Basset, on a paper 'On Stokes’s current function' by Ralph Allen Sampson | 19 December 1890 |
| RR/62/72 | Second referee's report by Ralph Allen Sampson, on a paper 'Experimental and theoretical problems of photography, II' by J E P Wagstaff and W A Prowse | 11 December 1936 |
| NLB/41/179 | Copy letter from Robert William Frederick Harrison, to Professor Ralph Allen Sampson, Fellow of the Royal Society | 28 October 1909 |
| RR/26/48 | Referee's report by Ralph Allen Sampson, on a paper 'The influence of satellites upon the form of Saturn's ring' by George Ridsdale Goldsbrough | 17 April 1921 |
| RR/62/71 | Referee's report by Ralph Allen Sampson, on a paper 'Experimental and theoretical problems of photography, II' by J E P Wagstaff and W A Prowse | 10 October 1936 |
| NLB/61 | New Letter Book volume 61, copy letters sent from Royal Society administration | 26 April 1921-11 November 1921 |
| NLB/52 | New Letter Book volume 52, copy letters sent from Royal Society administration | 9 July 1915-8 March 1916 |
| RR/30/55 | Referee's report by Ralph Allen Sampson, on a paper 'On the possible ellipticity of Saturn's ring' by G R Goldbrough | [June 1924] |
| MC/30/180 | Letter from [Ralph Allen] Sampson, Royal Observatory, Edinburgh, to Mr [Robert] Harrison, [Royal Society] | 2 July 1915 |
| NLB/52/200 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Miss J. Montefoire; 98 Grosvenor Road, South West of London | 13 October 1915 |
| MC/21/541 | Letter from [Ralph Allen] Sampson, Observatory House, Durham, to [Robert William Frederick] Harrison | 23 December 1906 |
| NLB/34/294 | Copy letter from Robert William Frederick Harrison, to Professor Ralph Allen Sampson, [Fellow of the Royal Society], Observatory House, Durham | 24 December 1906 |
| MC/37/118 | Letter from [Ralph Allen] Sampson, General Secretary, Royal Society of Edinburgh, 22 George Street, to The Secretary, Royal Society of London, Burlington House, London | 9 March 1923 |
| MC/37/119 | Letter from [Ralph Allen] Sampson, General Secretary, Royal Society of Edinburgh, 22 George Street, to [James Hopwood] Jeans, Secretary, Royal Society of London, Burlington House, London | 7 June 1923 |
| NLB/64/728 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor Ralph Allen Sampson, FRS | 11 June 1923 |
| MC/21 | Volume 21 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1906 |