| RefNo | Title | Date |
| IM/Maull/004820 | Watts, William Whitehead | nd |
| IM/004821 | Watts, William Whitehead | circa 1938 |
| NLB/1/39 | Copy letter from Herbert Rix, to William Whitehead Watts | 30 December 1885 |
| NLB/13/579 | Copy letter from Robert William Frederick Harrison, to William Whitehead Watts, Corndon, Worcester Road, Sutton, Surrey | 10 October 1896 |
| NLB/46/156 | Copy letter from Robert William Frederick Harrison, to Professor [William Whitehead] Watts, Fellow of the Royal Society | 19 June 1912 |
| NLB/12/101 | Copy letter from Herbert Rix, to William Whitehead Watts, Geological Museum, Jermyn Street | 6 December 1895 |
| NLB/13/237 | Copy letter from Robert William Frederick Harrison, to William Whitehead Watts, Geological Museum, Jermyn Street, S.W. | 8 July 1896 |
| NLB/13/295 | Copy letter from Robert William Frederick Harrison, to William Whitehead Watts, [Fellow of the Royal Society], Geological Survey Office | 22 July 1896 |
| NLB/12/99 | Copy letter from Herbert Rix, to William Whitehead Watts, Geological Museum, Jermyn Street | 6 December 1895 |
| NLB/12/100 | Copy letter from Herbert Rix, to William Whitehead Watts, Secretary to the Coral Reef Committee, Geological Museum, Jermyn Street | 6 December 1895 |
| NLB/12/102 | Copy letter from Herbert Rix, to William Whitehead Watts, Secretary to the Coral Reef Committee, Geological Museum, Jermyn Street | 6 December 1895 |
| NLB/15/62 | Copy letter from Robert William Frederick Harrison, to William Whitehead Watts, Geological Survey Office, 28 Jermyn Street, S.W. | 17 June 1897 |
| NLB/16/835 | Copy letter from Robert William Frederick Harrison, to Professor W W Watts, Birmingham | 17 June 1898 |
| NLB/16/521 | Copy letter from Robert William Frederick Harrison, to W W Watts | 25 April 1898 |
| NLB/34/395 | Copy letter from Robert William Frederick Harrison, to Professor William Whitehead Watts, Fellow of the Royal Society, Royal College of Science, South Kensington, S.W. | 14 January 1907 |
| NLB/40/573 | Copy letter from Robert William Frederick Harrison to Professor W [William] W [Whitehead] Watts FRS | 29 June 1909 |
| NLB/50/644 | Copy letter from Robert William Frederick Harrison, to Professor [William Whitehead] Watts, Fellow of the Royal Society | 2 October 1914 |
| NLB/42/485 | Copy letter from Robert William Frederick Harrison to Dr Whitehead FRS, 11 Cranmer Road, Cambridge | 20th June 1910 |
| NLB/46/222 | Copy letter from Robert William Frederick Harrison, to Professor William Whitehead Watts, Fellow of the Royal Society | 27 June 1912 |
| NLB/46/635 | Copy letter from Henry George Lyons, to Dr Charles William Andrews, Alfred Harker, Dr George Jennings Hinde, Clement Reid, Professor Albert Charles Seward, Professor William Whitehead Watts, Captain Thomas Henry Tizard, Professor John Walter Gregory | 7 October 1912 |
| NLB/47/761 | Copy letter from Robert William Frederick Harrison to Professor W [William] W [Whitehead] Watts FRS | 8 April 1913 |
| NLB/51/386 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor W W Watts | 8 March 1915 |
| NLB/51/367 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor William Whitehead Watts FRS | 25 February 1915 |
| NLB/51/376 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor William Whitehead Watts FRS | 3 March 1915 |
| NLB/51/355 | Copy letter from P D Rogers [Royal Society administrative staff] of the Royal Society to Professor William Whitehead Watts FRS | 22 February 1915 |
| NLB/50/624 | Copy letter from Robert William Frederick Harrison, to Professor [William Whitehead] Watts, Fellow of the Royal Society, Chairman of the Geology Committee | 29 September 1914 |
| NLB/51/431 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor William Whitehead Watts FRS | 19 March 1915 |
| NLB/52/25 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor William Whitehead Watts FRS | 20 July 1915 |
| NLB/52/112 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor William Whitehead Watts FRS | 24 August 1915 |
| NLB/52/4 | Copy letter from Robert William Frederick Harrison Assistant Secretary of the Royal Society to Professor William Whitehead Watts FRS | 14 July 1915 |
| NLB/52/462 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor William Whitehead Watts, FRS | 14 December 1915 |
| NLB/54/726 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 24 August 1917 |
| NLB/53/76 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 4 April 1916 |
| NLB/59/726 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Whitehead] Watts, Chairman of the Geology Committee and FRS | 5 November 1920 |
| NLB/58/745 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, Chairman of the Geology Committee and FRS | 14 June 1920 |
| NLB/58/58 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, Chairman of the Geology Committee and FRS | 6 March 1920 |
| NLB/59/908 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, Chairman of the Geology Committee and FRS | 27 November 1920 |
| NLB/57/501 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor WW [William Whitehead] Watts, FRS | 19 November 1919 |
| NLB/58/164 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, Chairman of the Geology Committee and FRS | 22 March 1920 |
| NLB/58/340 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Whitehead] Watts, Chairman of the Geology Committee and FRS | 22 April 1920 |
| NLB/58/840 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, Chairman of the Geology Committee and FRS | 24 June 1920 |
| NLB/58/899 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Whitehead] Watts, Chairman of the Geology Committee and FRS | 30 June 1920 |
| NLB/59/124 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, Chairman of the Geology Committee and FRS | 19 July 1920 |
| NLB/60/135 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 13 December 1920 |
| NLB/64/572 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 05 May 1923 |
| NLB/60/667 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 11 March 1921 |
| NLB/61/500 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 12 July 1921 |
| NLB/60/724 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 19 March 1921 |
| NLB/61/711 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, Chairman of Government Grant Committee, Board D, FRS | 14 October 1921 |
| NLB/57/772 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor WW [William Whitehead] Watts, FRS, Chairman of the Geology Sectional Committee | 2 February 1920 |
| NLB/64/217 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 23 February 1923 |
| NLB/56/214 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [William Whitehead Watts, FRS] the Secretary of the Conjoint Board of Scientific Societies | 17 December 1918 |
| NLB/61/839 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 3 November 1921 |
| NLB/55/547 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [William Whitehead] Watts, Esq., FRS, Honourable Secretary of the Conjoint Board of Scientific Societies | 29 May 1918 |
| NLB/57/825 | Copy letter from Sir William Bate Hardy, FRS, Secretary of the Royal Society;to Professor WW [William Whitehead] Watts, FRS | 14 February 1920 |
| NLB/62/95 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [William Whitehead Watts] the Secretary of the Conjoint Board of Scientific Societies | 1 December 1921 |
| NLB/62/263 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 14 January 1922 |
| NLB/62/719 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 12 April 1922 |
| NLB/57/691 | Copy letter from John M [Millar] Thomson, Chairman of the Library Committee of the Royal Society; to Professor JW [John William] Nicholson, FRS, Chairman of the Sectional Committee of Mathematics | 16 January 1920 |
| NLB/66/479 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [William Whitehead] Watts, FRS | 16 May 1924 |
| NLB/63/750 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 09 December 1922 |
| NLB/65/742 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 15 December 1923 |
| NLB/67/469 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [John] Horne, FRS | 5 January 1925 |
| NLB/57/897 | Copy letter from Edwin Deller, Acting Assistant Secretary of the Royal Society; to Professor WW [William Whitehead] Watts, FRS | 28 February 1920 |
| NLB/68/404 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 9 July 1925 |
| NLB/69/6 | Copy letter from Henry Hallett Dale, Secretary of the Royal Society; to Prof. [William Whitehead] Watts, FRS | 10 December 1925 |
| NLB/69/232 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [William Whitehead] Watts, FRS | 10 February 1926 |
| NLB/65/853 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 18 January 1924 |
| NLB/69/117 | Copy letter from Henry Hallett Dale, Secretary of the Royal Society; to Prof. [William Whitehead] Watts, FRS | 14 January 1926 |
| NLB/73/8 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [William Whitehead] Watts, FRS | 8 October 1930 |
| NLB/72/528 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 3 December 1929 |
| NLB/72/372 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Gerald Lenox-Conyngham, FRS | 29 August 1929 |
| NLB/73/205 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [William Whitehead] Watts, FRS | 27 February 1931 |
| NLB/73/196 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to A. D. C. Parsons Esq., SW1 | 19 February 1931 |
| NLB/73/366 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the Secretary, Royal Society of South Africa, Cape Town, [South Africa] | 7 July 1931 |
| EC/1904/17 | Watts, William Whitehead: certificate of election to the Royal Society | |
| NLB/60/838 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [William Whitehead] Watts, FRS | 14 April 1921 |
| NLB/56/242 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Dr. [William Whitehead] Watts, FRS | 20 December 1918 |
| IM/004822 | Watts, William Whitehead | nd |
| NLB/13/192 | Copy letter from Robert William Frederick Harrison, to William Whitehead Watts, [Fellow of the Royal Society] | 29 June 1896 |
| NLB/58 | New Letter Book volume 58, copy letters sent from Royal Society administration | 28 February 1920-9 July 1920 |
| NLB/59 | New Letter Book volume 59, copy letters sent from Royal Society administration | 9 July 1920-2 December 1920 |
| NLB/52 | New Letter Book volume 52, copy letters sent from Royal Society administration | 9 July 1915-8 March 1916 |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |
| MDA/C/6/4 | Papers relating to an award from the Darwin Research Fund to Sir Arthur Hill, Royal Botanic Gardens Kew | 1939-1940 |
| RR/33/6 | Referee's report by William Whitehead Watts on a paper 'The coraIlian rocks of Oxford, Berks and North Wilts' by William Joscelyn Arkell | 8 January 1926 |
| MC/16/297 | Letter from [William Whitehead] Watts, Geological Survey Office, 28 Jermyn Street, London, to Sir [John] Evans | 13 March 1896 |
| MC/16 | Volume 16 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1893-1896 |
| NLB/41/114 | Copy letter from Robert William Frederick Harrison, to Professor William Whitehead Watts, Fellow of the Royal Society | 15 October 1909 |
| NLB/41/246 | Copy letter from Robert William Frederick Harrison, to Professor William Whitehead Watts, Fellow of the Royal Society | 8 November 1909 |