| RefNo | Title | Date |
| IM/Maull/002083 | Hicks, William Mitchinson | nd |
| IM/Maull/002082 | Hicks, William Mitchinson | nd |
| IM/002085 | Hicks, William Mitchinson | nd |
| NLB/6/870 | Copy letter from Herbert Rix, to Dr William Mitchinson Hicks | 27 July 1892 |
| NLB/5/258 | Copy letter from Herbert Rix, to Professor William Mitchinson Hicks, [Fellow of the Royal Society] | 23 April 1891 |
| NLB/6/1178 | Copy letter from Herbert Rix, to Lord Rayleigh [John William Strutt] | 5 November 1892 |
| NLB/10/302 | Copy letter from Herbert Rix, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 7 November 1894 |
| NLB/11/116 | Copy letter from Herbert Rix, to William Henry Preece, Fellow of the Royal Society | 24 April 1895 |
| NLB/11/128 | Copy letter from Herbert Rix, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 26 April 1895 |
| NLB/11/475 | Copy letter from Herbert Rix, to Professor William Mitchinson Hicks, Fellow of the Royal Society, Dunheved, Endcliffe Crescent, Sheffield | 10 July 1895 |
| NLB/38 | New Letter Book volume 38, copy letters sent from Royal Society administration | 1 June 1908-12 November 1908 |
| RR/17/308 | Referee's report by William Mitchenson Hicks, on a paper 'The condensation of certain organic vapours' by Thomas Howell Laby | April 1908 |
| RR/15/213 | Referee's report by William Mitchinson Hicks, on a paper 'The integration of the equations of propagation of electric waves' by Augustus Edward Hough Love | February 1901 |
| RR/15/176 | Second referee's report by William Mitchinson Hicks, on a paper 'The pear shaped and other figures of equilibrium of a rotating mass of liquid' by George Howard Darwin | October 1901 |
| RR/16/29 | Referee's report by William Mitchison Hicks on a paper 'The Laws governing electric discharges in gases at low pressures' by W R Carr | April 1903 |
| RR/17/164 | Referee's report by William Mitchinson Hicks, on a paper 'On the frictional resistances to the flow of air through a pipe' by John H Grindley and A H Gibson | [June 1907] |
| NLB/17/58 | Copy letter from Arthur William Rucker, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 8 July 1898 |
| NLB/16/692 | Copy letter from Robert William Frederick Harrison, to Professor W M Hicks, Fellow of the Royal Society | 19 May 1898 |
| NLB/23/1/83 | Copy letter from R Chapman, to Principal William Mitchinson Hicks, Fellow of the Royal Society | 13 September 1901 |
| NLB/38/348 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society, Chairman of the Physics and Chemistry Committee | 17 July 1908 |
| NLB/23/1/775 | Copy letter from Theodore E James, to Professor William Mitchinson Hicks, Fellow of the Royal Society, Sheffield | 21 January 1902 |
| NLB/24/209 | Copy letter from Robert William Frederick Harrison, to Professor [William Mitchinson] Hicks, Fellow of the Royal Society | 25 March 1902 |
| NLB/25/132 | Copy letter from Theodore E James, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 20 August 1902 |
| NLB/26/569 | Copy letter from Robert William Frederick Harrison to, Professor William Mitchinson Hicks, Fellow of the Royal Society | 21 April 1903 |
| NLB/29/533 | Copy letter from Robert William Frederick Harrison, to Dr William Mitchinson Hicks, Fellow of the Royal Society | 1 November 1904 |
| NLB/27/852 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 11 December 1903 |
| NLB/28/600 | Copy letter from Robert William Frederick Harrison, to E Howarth, Public Museum, Sheffield | 16 April 1904 |
| NLB/28/787 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 20 May 1904 |
| NLB/32/708 | Copy letter from Robert William Frederick Harrison, to [Messrs Harrison & Sons] | 12 May 1906 |
| NLB/34/217 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 13 December 1906 |
| NLB/35/325 | Copy letter from Robert William Frederick Harrison, to Professor Arthur Schuster, Fellow of the Royal Society, Chairman of the Physics and Chemistry Committee | 15 May 1907 |
| NLB/41/554 | Copy letter from Joseph Larmor, to William Mitchinson Hicks, Fellow of the Royal Society | 12 January 1910 |
| NLB/38/268 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 8 July 1908 |
| NLB/37/183 | Copy letter from Robert William Frederick Harrison to Professor W [William] M [Mitchinson] Hicks FRS | 10 February 1908 |
| NLB/37/213 | Copy letter from Robert William Frederick Harrison to Professor W [William] M [Mitchinson] Hicks FRS, Chairman of the Physics and Chemistry Committee | 14 February 1908 |
| NLB/38/236 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society, Chairman of the Physics and Chemistry Committee | 3 July 1908 |
| NLB/38/171 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 23 June 1908 |
| NLB/38/238 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 6 July 1908 |
| NLB/37/488 | Copy letter from Robert William Frederick Harrison to Professor Wm [William] Hicks, Fellow of the Royal Society, Chairman of the Physics & Chemistry Sectional Committee | 27 March 1908 |
| NLB/36/878 | Copy letter from Robert William Frederick Harrison, to William Mitchinson Hicks, Fellow of the Royal Society | 6 January 1908 |
| NLB/38/612 | Copy letter from Joseph Larmor, to Professor William Mitchison Hicks, Fellow of the Royal Society | 8 October 1908 |
| NLB/39/56 | Copy letter from Joseph Larmor to Professor [William Mitchinson] Hicks | 18 November 1908 |
| NLB/37/637 | Copy letter from Robert William Frederick Harrison to Professor W [William] M [Mitchinson] Hicks, Fellow of the Royal Society | 23 April 1908 |
| NLB/37/640 | Copy letter from Robert William Frederick Harrison to Professor J Larmor, Fellow of the Royal Society, Secretary of the Royal Society | 23 April 1908 |
| NLB/37/647 | Copy letter from Robert William Frederick Harrison to Professor J [Joseph] Larmor, Fellow of the Royal Society, Secretary of the Royal Society | 24 April 1908 |
| NLB/37/689 | Copy letter from Robert William Frederick Harrison to Professor W [William] M [Mitchinson] Hicks, Fellow of the Royal Society, Chairman of the Physics & Chemistry Sectional Committee | 1 May 1908 |
| NLB/37/882 | Copy Letter from Joseph Larmor to Professor W [William Mitchinson] Hicks | 29 May 1908 |
| NLB/38/292 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 10 July 1908 |
| NLB/38/303 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society, Chairman of the Physics Committee | 13 July 1908 |
| NLB/38/376 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society, Chairman of the Physics and Chemistry Committee | 23 July 1908 |
| NLB/40/43 | Copy letter from Alfred Bray Kempe to Professor W [William] M [Mitchinson] Hicks FRS, May Park Road, Sheffield | 26 March 1909 |
| NLB/40/517 | Copy letter from Robert William Frederick Harrison to [William Mitchinson] Hicks | 18 June 1909 |
| NLB/40/739 | Copy letter from Joseph Larmor to [William Mitchinson] Hicks | 27 July 1909 |
| NLB/41/94 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchison Hicks, Fellow of the Royal Society | 13 October 1909 |
| NLB/42/260 | Copy letter from Joseph Larmor, Secretary RS to Professor W [William] H [Hicks] FRS, Leamhurst, Ivy Parl, Sheffield | 3 May 1910 |
| NLB/42/258 | Copy letter from Joseph Larmor to Professor W [William] M [Mitchinson] Hicks FRS | 3 May 1910 |
| NLB/42/327 | Copy letter from Robert William Frederick Harrison to Professor W [William] M [Mitchinson] Hicks FRS | 23 May 1910 |
| NLB/42/469 | Copy letter from Joseph Larmor to W [William] M [Mitchinson] Hicks | 18 June 1910 |
| NLB/42/530 | Copy letter from Robert William Frederick Harrison to Professor W [William] M [Mitchinson] Hicks FRS | 27 June 1910 |
| NLB/43/48 | Copy letter from Joseph Larmor, to [William Mitchinson] Hicks, Fellow of the Royal Society | 27 October 1910 |
| NLB/43/44 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 27 October 1910 |
| NLB/43/101 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 5 November 1910 |
| NLB/44/560 | Copy letter from Robert William Frederick Harrison to Professor W [William] M [Mitchinson] Hicks FRS | 8 August 1911 |
| NLB/45/458 | Copy letter from Joseph Larmor to [William Mitchinson] Hicks | 7 March 1912 |
| NLB/46/335 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchinson Hicks, Fellow of the Royal Society | 11 July 1912 |
| NLB/45/345 | Copy letter from Robert William Frederick Harrison to Professro W [William] M [Mithinson] Hicks FRS | 17 February 1912 |
| NLB/47/19 | Copy letter from Joseph Larmor, Secretary of the Royal Society to Professor W [William] M [Mitchinson] Hicks FRS | 13 November 1912 |
| NLB/47/48 | Copy letter from Robert William Frederick Harrison to Professor W [William] M [Mitchinson] Hicks FRS | 20 November 1912 |
| NLB/55/232 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Mitchinson] Hicks, FRS | 28 January 1918 |
| NLB/50/186 | Copy letter from Robert William Frederick Harrison, to Professor [William Mitchinson] Hicks, Fellow of the Royal Society | 19 May 1914 |
| RR/23/68 | Referee's report by William Mitchinson Hicks, on a paper 'On the distribution of intensity in broadened spectrum lines' by John William Nicholson and Thomas Ralph Merton | 1916 |
| RR/17/300 | Referee's report by William Mitchenson Hicks, on a paper 'An apparatus for measurements of the defining power of objectives' by James de Graaff-Hunter | October 1908 |
| RR/19/84 | Referee's report by William Mitchinson Hicks, on a paper 'On the series lines in the arc spectrum of Mercury' by John Cunningham McLennan | nd [1912] |
| RR/19/67 | Referee's report by Edmund Taylor Whittaker, on a paper 'A critical study of spectral series.–Part II. The p and s sequences and the atomic volume term' by William Mitchinson Hicks | [February 1912] |
| RR/17/352 | Letter from William Mitchinson Hicks, on a paper 'The specific heats of air and carbon dioxide at atmospheric pressure by the continuous electric method at 20 degrees celsius and 100 degrees celsius' by W F G Swann | 16 June 1909 |
| RR/20/98 | Referee report by William Mitchinson Hicks, on a paper 'On the displacements of the particles and their paths in some cases of two-dimensional motion of a frictionless liquid' by W B Horton | June 1913 |
| NLB/53/378 | Copy letter from [Dr.] Arthur Schuster, Secretary of the Royal Society and FRS; to Professor [William Mitchinson] Hicks, FRS | 20 July 1916 |
| NLB/56/680 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [Messrs Harrison & Sons] | 14 April 1919 |
| RR/20/64 | Referee's report by Edmund Taylor Whittaker, on a paper 'A critical study of spectral series - Part III - The atomic weight term and its import in the constitution of spectra' by William Mitchinson Hicks | June 1913 |
| RR/21/117 | Referee's report by William Mitchinson Hicks, on a paper 'On the origin of the absorption spectra of certain types of organic compounds' by N P McCleland | [April 1914] |
| RR/20/65 | Referee's report by Arthur Schuster, on a paper 'A critical study of spectral series - Part III - The atomic weight term and its import in the constitution of spectra' by William Mitchinson Hicks | July 1913 |
| RR/19/66 | Referee's report by Arthur Schuster, on a paper 'A critical study of spectral series.–Part II. The p and s sequences and the atomic volume term' by William Mitchinson Hicks | [March 1912] |
| RR/24/2 | Referee's report by William Mitchinson Hicks, on a paper 'Characteristic frequency and atomic number' by Herbert Stanley Allen | [June 1917] |
| RR/23/41 | Referee's report by Edmund Taylor Whittaker on a paper 'A critical study of spectral series - Part IV -The structure of spark spectra' by William Mitchinson Hicks | June 1916 |
| RR/23/40 | Referee's report by Arthur Schuster, on a paper 'A critical study of spectral series - Part IV -The structure of spark spectra' by William Mitchinson Hicks | 1916 |
| RR/25/31 | Referee's report by William Mitchinson Hicks, on a paper 'On intensity relations in the spectrum of helium' by Thomas Ralph Merton and John William Nicholson | [May 1918] |
| NLB/56/353 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr. [William Mitchinson] Hicks, FRS | 18 January 1919 |
| RR/10/9 | Referee's report by William Mitchinson Hicks, on a paper 'On the motion of a sphere in a viscous liquid' by Alfred Barnard Basset | 26 December 1887 |
| RR/8/228 | Referee's report by William Thomson, Lord Kelvin, on a paper 'On the motion of two spheres in a fluid' by William Mitchinson Hicks | 6 January 1880 |
| RR/8/323 | Letter from Thomas Henry Huxley, to William Spottiswoode, regarding a paper 'On toroidal functions' by William Mitchinson Hicks | 2 October 1881 |
| RR/17/316 | Referee's report by William Mitchenson Hicks, on a paper 'The mechanism of the adsorption of hydrogen by carbon' by James William McBain | 29 November 1908 |
| NLB/56/894 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Mitchinson] Hicks, FRS | 20 June 1919 |
| RR/9/277 | Referee's report by William Thomson, Lord Kelvin, on a paper 'On the steady motion and small vibrations a hollow vortex. Part II' by William Mitchinson Hicks | 8 October 1885 |
| RR/11/248 | Referee's report by William Mitchinson Hicks, on a paper 'The potential of an anchor ring' by Frank Watson Dyson | 8 May 1893 |
| RR/22/85 | Referee's report by William Mitchinson Hicks, on a paper 'The band spectrum associated with helium' by John William Nicholson | May 1915 |
| RR/17/457 | Referee's report by William Mitchinson Hicks, on a paper 'The relative motion of the Earth and the ether' by H A Wilson | January 1910 |
| RR/11/108 | Referee's report by William Mitchinson Hicks, on a paper 'Stability and instability of viscous liquids' by Alfred Barnard Basset | 3 November 1892 |
| RR/12/373 | Detailed referee's report by William Mitchinson Hicks, on a paper 'The complete system of the periods of a hollow vortex ring' by Henry Cabourn Pocklington | [1895] |
| RR/11/144 | Referee's report by William Mitchinson Hicks, on a paper 'The potential of an anchor ring' by Frank Watson Dyson | 27 July 1892 |
| RR/12/372 | Referee's report by William Mitchinson Hicks, on a paper 'The complete system of the periods of a hollow vortex ring' by Henry Cabourn Pocklington | 23 June 1895 |
| RR/12/345 | Second letter from A H Leahy, to William Mitchinson Hicks, regarding a paper 'On certain functions connected with tesseral harmonics, with applications' by A H Leahy | 16 February 1895 |
| RR/18/22 | Referee's report by William Mitchinson Hicks, on a paper 'Some phenomena of magnetic disturbances at Kew' by Charles Chree | March 1910 |
| NLB/61/880 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Mitchinson] Hicks, FRS | 8 November 1921 |
| RR/22/99 | Referee's report by William Mitchinson Hicks, on a paper 'The newtonian constant of gravitation as affected by temperature' by P E Shaw | November 1915 |
| RR/27/75 | Referee's report by Thomas Henry Havelock, on a paper 'On the mutual threading of vortex rings' by William Mitchinson Hicks | July 1922 |
| NLB/57/314 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to unknown correspondent | 13 October 1919 |
| RR/43/61 | Referee's report by John Cunningham McLennan, on a paper 'Notes on the spectrum of gold' by William Mitchinson Hicks | March 1932 |
| RR/17/411 | Referee's report by Arthur Schuster, on a paper 'A critical study of spectral series.— Part I. The alkalies H and He' by William Mitchinson Hicks | November 1909 |
| NLB/57/256 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to unknown correspondent | 30 September 1919 |
| NLB/60/796 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Mitchinson] Hicks, FRS | 6 April 1921 |
| NLB/57/13 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor WM [William Mitchinson] Hicks, FRS | 30 June 1919 |
| NLB/57/101 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Richard Tetley Glazebrook, FRS | 23 July 1919 |
| RR/9/278 | Referee's report by Charles Niven, on a paper 'On the steady motion and small vibrations a hollow vortex. Part II' by William Mitchinson Hicks | 20 November 1885 |
| RR/9/218 | Referee's report by Charles Niven, on a paper 'On the steady motion and small vibrations a hollow vortex' by William Mitchinson Hicks | 16 February 1884 |
| NLB/57/227 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Messrs. Harrison & Sons | 20 September 1919 |
| NLB/63/501 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Mitchinson] Hicks, FRS | 30 October 1922 |
| NLB/65/832 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Mitchinson] Hicks, FRS | 15 January 1924 |
| RR/18/47 | Referee's report by William Mitchinson Hicks, on a paper 'Optical dispersion : an analysis of its actual dependence upon physical conditions' by Thomas Henry Havelock | November 1910 |
| RR/8/321 | Letter from William Mitchinson Hicks, to George Gabriel Stokes, regarding a paper 'On toroidal functions' by William Mitchinson Hicks | 21 July 1881 |
| RR/8/320 | Committee report, on a paper 'On toroidal functions' by William Mitchinson Hicks | nd [1881] |
| NLB/66/72 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [William Mitchinson] Hicks, FRS | 18 February 1924 |
| NLB/65/801 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Mitchinson] Hicks, FRS | 4 January 1924 |
| NLB/64/818 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [William Mitchinson] Hicks, FRS, Vancouver [British Colombia] Canada | 21 June 1923 |
| NLB/65/895 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Mitchinson] Hicks, FRS | 24 January 1924 |
| NLB/65/897 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Frederick Alexander] Lindemann, FRS | 25 January 1924 |
| RR/28/105 | Referee's report by Thomas Ralph Merton, on a paper 'The constitution of the secondary spectrum of hydrogen' by William Mitchinson Hicks | [June 1923] |
| NLB/66/139 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Prof. [William Mitchinson] Hicks, FRS | 28 February 1924 |
| RR/42/19 | Referee's report by William Mitchinson Hicks, on a paper 'The steady broadside motion of an anchor ring in an infinite viscous liquid' by F E Relton | 17 November 1931 |
| NLB/69/288 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Charles Galton] Darwin, FRS | 22 February 1926 |
| EC/1885/10 | Hicks, William Mitchinson: certificate of election to the Royal Society | |
| IM/002084 | Hicks, William Mitchinson | nd |
| NLB/27/509 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchison Hicks, Fellows of the Royal Society | 12 October 1903 |
| NLB/11/108 | Copy letter from Herbert Rix, to William Henry Preece, Fellow of the Royal Society | 22 April 1895 |
| NLB/38/1 | Copy letter from Robert William Frederick Harrison, to Professor William Mitchison Hicks, Fellow of the Royal Society, Chairman of the Physics and Chemistry Committee | 1 June 1908 |
| NLB/37/21 | Copy letter from Robert William Frederick Harrison to Professor [William Mitchinson] Hicks FRS | 10 January 1908 |
| RR/19/85 | Referee's report by William Mitchinson Hicks, on a paper 'On the constitution of the mercury green line ? = 5461 Å. U., and on the magnetic resolution its satellites by an echelon grating' by John Cunningham McLennan | [May 1912] |
| RR/20/137 | Referee's report by William Mitchinson Hicks, on a paper 'Similarity of motion in relation to the surface friction of fluids' by Thomas Edward Stanton and J R Pannell | January 1914 |
| RR/21/71 | Referee's report by William Mitchinson Hicks, on the Bakerian Lecture 'Series lines in spark spectra' by Alfred Fowler | [May 1914] |
| RR/14/57 | Referee's report by Joseph John Thomson, on a paper 'Researches in vortex motion.—Part III. On spiral or gyrostatic vortex aggregates' by William Mitchinson Hicks | 16 March 1898 |
| RR/8/318 | Referee's report by Arthur Cayley, on a paper 'On toroidal functions' by William Mitchinson Hicks | 4 May 1881 |
| RR/15/173 | Referee's report by William Mitchinson Hicks, on a paper 'The pear shaped and other figures of equilibrium of a rotating mass of liquid' by George Howard Darwin | September 1901 |
| NLB/36/775 | Copy letter from Robert William Frederick Harrison, to Professor William Burnside, Fellow of the Royal Society, Chairman of the Mathematics Sectional Committee | 13 December 1907 |
| RR/21/58 | Referee's report by William Mitchinson Hicks, on a paper 'Wave-lengths of hydrogen lines and determination of the series constant' by William Edward Curtis | [June 1914] |
| RR/8/322 | Letter from William Spottiswoode, to Thomas Henry Huxley, regarding a paper 'On toroidal functions' by William Mitchinson Hicks | 23 July 1881 |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |
| AP/71/8/1 | Unpublished manuscript, 'On certain functions connected with tesseral harmonics' by A H [Arthur Herbert] Leahy | 22 December 1894 |
| RR/18/5 | Referee's report by William Mitchinson Hicks, on a paper 'Some new facts connected with the motions of oscillating water' by Herta Ayrton | [December 1910] |
| MDA/C/30/1/11 | Letter from William Mitchinson Hicks, Leamhurst, Ivy Park Road, Sheffield, to Joseph Larmor | 31 January 1909 |
| MDA/C/32/1/3 | Letter from William Mitchinson Hicks, the University, Sheffield, to Joseph Larmor | 20 January 1910 |
| MDA/C/30/1/18 | Letter from William Mitchinson Hicks, Leamhurst, Ivy Park Road, Sheffield, to Alfred Bray Kempe | 31 January 1909 |
| MDA/C/30/1/2 | Letter from William Mitchinson Hicks, Dunheyed, Endcliffe Crescent, Sheffield, to Sir William [Huggins] | 17 October 1904 |
| MDA/C/30/1/3 | Letter from William Mitchinson Hicks, Dunheyed, Endcliffe Crescent, Sheffield, to Sir William [Huggins] | 18 October 1904 |
| RR/12/346 | Letter from William Mitchinson Hicks, to John William Strutt, Lord Rayleigh, regarding a paper 'On certain functions connected with tesseral harmonics, with applications' by A H Leahy | 18 February 1895 |
| RR/29/1 | Referee's report by Alfred Fowler, on a paper 'On the constitution of the secondary spectrum of hydrogen' by William Mitchinson Hicks | 25 May 1923 |
| RR/12/376 | Letter from William Mitchinson Hicks, to John William Strutt, 3rd Baron Rayleigh, regarding a paper 'The complete system of the periods of a hollow vortex ring' by Henry Cabourn Pocklington | 21 July 1895 |
| AP/70/8 | Unpublished paper, 'On certain functions connected with tesseral harmonics, with applications' by A H [Arthur Herbert] Leahy | 1894 |
| RR/12/385 | Referee's report by William Mitchinson Hicks, on a paper 'Theorems on the attraction of ellipsoids for certain laws of force other than the inverse square' by Edward John Routh | 24 August 1895 |
| AP/71/8 | Unpublished paper, 'On certain functions connected with tesseral harmonics' by A H [Arthur Herbert] Leahy | 22 December 1894 |
| AP/70/8/1 | Unpublished manuscript, 'On certain functions connected with tesseral harmonics, with applications' by A H [Arthur Herbert] Leahy | 1894 |
| RR/8/281 | Letter from Arthur Cayley, to George Gabriel Stokes, regarding a paper 'On toroidal functions' by William Mitchinson Hicks, and two untraced papers by James Whitbread Lee Glaisher | 24 June 1881 |
| RR/8/319 | Referee's report by William Thomson, 1st Baron Kelvin, on a paper 'On toroidal functions' by William Mitchinson Hicks | 20 June 1881 |
| RR/14/58 | Referee's report by Micaiah John Muller Hill, on a paper 'Researches in vortex motion.—Part III. On spiral or gyrostatic vortex aggregates' by William Mitchinson Hicks | nd [1898] |
| RR/17/412 | Referee's report by Edmund Taylor Whittaker, on a paper 'A critical study of spectral series.— Part I. The alkalies H and He' by William Mitchinson Hicks | [December 1909] |
| RR/25/20 | Referee's report by Edmund Taylor Whittaker, on a paper 'A critical study of spectral series.—Part V. The spectra of the monatomic gases' by William Mitchinson Hicks | [August 1918] |
| RR/25/21 | Referee's report by John William Nicholson, on a paper 'A critical study of spectral series.—Part V. The spectra of the monatomic gases' by William Mitchinson Hicks | [July 1918] |
| RR/28/104 | Referee's report by Frederick Alexander Lindemann, Viscount Cherwell, on a paper 'The constitution of the secondary spectrum of hydrogen' by William Mitchinson Hicks | [February 1924] |
| RR/33/98 | Referee's report by Charles Galton Darwin, on a paper 'The quantum deviation of the Zeeman effect' by William Mitchinson Hicks | March 1926 |
| RR/33/99 | Referee's report by Ralph Howard Fowler, on a paper 'The quantum deviation of the Zeeman effect' by William Mitchinson Hicks | December 1925 |
| RR/43/60 | Referee's report by Alfred Fowler, on a paper 'Notes on the spectrum of gold' by William Mitchinson Hicks | 12 January 1932 |
| MC/14/22 | Letter from [Franz Arthur Friedrich] Schuster, Manchester, to [Walter] White | 14 February 1885 |
| MC/14 | Volume 14 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1885-1888 |
| MC/19/433 | Letter from [William Mitchinson] Hicks, Dunheyed, Endcliffe Crescent, Sheffield, to [Robert William Frederick] Harrison | 2 November 1904 |
| MC/25/106 | Letter from [William Mitchinson] Hicks, Leamhurst, Ivy Park Road, Sheffield, to [Joseph] Larmor, [Royal Society] | 4 May 1910 |
| MC/27/171 | Letter from [William Mitchinson] Hicks, Leamhurst, Ivy Park Road, Sheffield, to [Joseph] Larmor, [Royal Society] | 15 November 1912 |
| MC/27/170 | Letter from [William Mitchinson] Hicks, Leamhurst, Ivy Park Road, Sheffield, to [Robert] Harrison, [Royal Society] | 21 February 1912 |
| MC/27/276 | Letter from Carrington, Privy Purse Office, Buckingham Palace, to Sir Joseph Larmor, Secretary, The Royal Society | 12 November 1912 |
| NLB/50/241 | Copy letter from Robert William Frederick Harrison, to Professor [William Mitchinson] Hicks, Fellow of the Royal Society | 29 May 1914 |
| MC/29/129 | Letter from [William Mitchinson] Hicks, Leamhurst, Ivy Park Road, Sheffield, to Mr [Robert] Harrison, [Royal Society] | 31 May 1914 |
| MC/29/127 | Letter from [William Mitchinson] Hicks, The University, Sheffield, to Mr [Robert] Harrison, [Royal Society] | 23 April 1914 |
| MC/19 | Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1904 |
| MC/21/305 | Letter from William Mitchinson Hicks, Leamhurst, Ivy Park Road, Sheffield, to [Robert William Frederick] Harrison | 15 December 1906 |
| MC/35/81 | Letter from [William Mitchinson] Hicks, The Crowhurst Hotel, Crowhurst, Sussex, to [Francis Alexander] Towle | 6 November 1921 |
| MC/21 | Volume 21 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1906 |
| MC/29/128 | Letter from [William Mitchinson] Hicks, The University, Sheffield, to Mr [Robert] Harrison, [Royal Society] | 23 May 1914 |