| RefNo | Title | Date |
| EC/1874/03 | Blanford, William Thomas: certificate of election to the Royal Society | |
| RR/11/241 | Referee's report by William Thomas Blanford, on a paper 'The Har Dalam cavern, Malta, and its fossiliferous contents' by John H Cooke | 6 April 1893 |
| NLB/4/153 | Copy letter from Herbert Rix, to William Thomas Blanford, Fellow of the Royal Society | 26 February 1890 |
| NLB/7/251 | Copy letter from Herbert Rix, to William Thomas Blanford, Fellow of the Royal Society | 4 January 1893 |
| NLB/23/2/38 | Copy letter from Sir Michael Foster, to Dr William Thomas Blanford, Fellow of the Royal Society | 5 March 1901 |
| NLB/13/310 | Copy letter from Robert William Frederick Harrison, to Sir Joseph Fayrer, Fellow of the Royal Society | 23 July 1896 |
| NLB/12/105 | Copy letter from Herbert Rix, to Professor Michael Foster, Secretary, Royal Society | 6 December 1895 |
| NLB/16/106 | Copy letter from Robert William Frederick Harrison, to Dr W T Blanford, Fellow of the Royal Society | 1 February 1898 |
| NLB/16/279 | Copy letter from Robert William Frederick Harrison, to Dr W T Blanford, Fellow of the Royal Society | 7 March 1898 |
| NLB/15/808 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Fellow of the Royal Society | 13 December 1897 |
| NLB/15/716 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Fellow of the Royal Society | 22 November 1897 |
| NLB/21/84 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Fellow of the Royal Society | 25 July 1900 |
| NLB/17/749 | Copy letter from Robert William Frederick Harrison, to Herbert Rix | 15 December 1898 |
| NLB/21/526 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Fellow of the Royal Society | 3 December 1900 |
| NLB/19/807 | Copy letter from Arthur William Rucker, to William Thomas Blanford, [Fellow of the Royal Society] | 14 December 1899 |
| NLB/22/150 | Copy letter from Robert William Frederick Harrison, to [William Thomas] Blanford, Fellow of the Royal Society | 13 March 1901 |
| NLB/20/602 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Fellow of the Royal Society | 30 May 1900 |
| NLB/22/641 | Copy letter from Robert William Frederick Harrison, to Dr [William Thomas] Blanford, Fellow of the Royal Society, Chairman of the Geology Committee | 19 June 1901 |
| NLB/22/741 | Copy letter from Robert William Frederick Harrison, to William Thomas Blanford, Fellow of the Royal Society | 9 July 1901 |
| NLB/22/749 | Copy letter from Robert William Frederick Harrison, to Dr [William Thomas] Blanford, Fellow of the Royal Society | 11 July 1901 |
| NLB/23/2/135 | Copy letter from unknown correspondent, to General The Right Honorable Sir Dighton Probyn | 8 November 1901 |
| NLB/23/2/138 | Copy letter from Sir Michael Foster, to William Thomas Blanford, Fellow of the Royal Society | 14 November 1901 |
| NLB/23/2/103 | Copy letter from Alfred Bray Kempe, to Professor Andrew Russell Forsyth, Chairman of the Mathematic Committee and other Sectional Committee Chairmen | 29 June 1901 |
| NLB/26/540 | Copy letter from Robert William Frederick Harrison to, Dr William Thomas Blanford, Fellow of the Royal Society, 72 Bedford Gardens, Campden Hill, Kensington, W. | 8 April 1903 |
| NLB/26/631 | Copy letter from Robert William Frederick Harrison to, Dr William Thomas Blanford, Fellow of the Royal Society | 1 May 1903 |
| NLB/23/1/878 | Copy letter from Joseph Larmor, to Dr William Thomas Blanford, [Fellow of the Royal Society] | 11 February 1902 |
| NLB/25/15 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Vice President, Royal Society | 23 July 1902 |
| NLB/25/61 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Fellow of the Royal Society | 1 August 1902 |
| NLB/25/167 | Copy letter from A H White, to Dr William Thomas Blanford, Fellow of the Royal Society | 5 September 1902 |
| NLB/27/41 | Copy letter from Michael Foster, to William Thomas Blanford, [Fellow of the Royal Society] | 23 June 1903 |
| NLB/27/814 | Copy letter from Joseph Larmor, to Dr William Thomas Blanford, Fellow of the Royal Society | 3 December 1903 |
| NLB/30/603 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Fellow of the Royal Society | 17 April 1905 |
| RR/16/146 | Referee's report by William Thomas Blanford, on two papers 'On the ossiferous cave-deposits of Cyprus' and 'Further note on the remains of Elephas cypriotes from a cave-deposit in Cyprus' by Dorothea Minola Alice Bate | 11 June 1904 |
| RR/11/135 | Referee's report by William Thomas Blanford, on a paper 'On biologic regions and tabulation areas' by Charles Baron Clarke | 3 May 1892 |
| RR/15/11 | Referee's report by Philip Lutley Scalter, on a paper 'The distribution of vertebrate animals in India, Ceylon & Burma' by William Thomas Blanford | 27 December 1900 |
| NLB/1/498 | Copy letter from Michael Foster, to Willliam Thomas Blanford, Professor Thomas George Bonney, Dr Geikie, Professor Thomas Henry Huxley, and Professor John Wesley Judd | 8 July 1887 |
| NLB/17/788 | Copy letter from Richard Strachey and William Thomas Blanford, to Lord George Hamilton, Secretary of State for India | 21 December 1898 |
| NLB/20/97 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Fellow of the Royal Society | 30 January 1900 |
| NLB/20/428 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Fellow of the Royal Society | 25 April 1900 |
| NLB/27/882 | Copy letter from Robert William Frederick Harrison, to Dr William Thomas Blanford, Fellow of the Royal Society | 16 December 1903 |
| RR/15/369 | Referee's report by William Thomas Blanford, on a paper 'Mathematical contributions to the theory of evolution. XI. On the influence of natural selection on the variability and correlation of organs' by Karl Pearson | 13 February 1902 |
| NLB/18/818 | Copy letter from Robert William Frederick Harrison, to Sir Clements R Markham, Fellow of the Royal Society | 19 May 1899 |
| RR/16/5 | Referee's report by William Thomas Blanford, on a paper 'On the evolution of the Proboscidea' by Charles William Andrews | 20 April 1903 |
| MC/12/65 | Letter from W T [William Thomas] Blanford, 8 Princes Street, Hanover Square, to the Royal Society | 14 June 1880 |
| MC/12/66 | Letter from W T [William Thomas] Blanford, 8 Princes Street, Hanover Square, to [Walter White], Assistant Secretary of the Royal Society | 14 June 1880 |
| MC/12 | Volume 12 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1880-1883 |
| MC/13 | Volume 13 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1884 |
| RR/11/253 | Referee's report by William Thomas Blanford, on a paper 'On Megaladapis madagascariensis, an extinct gigantic lemuroid from Madagascar; with remarks on the associated fauna, and on its geological age' by Charles Immanuel Forsyth Major | 18 July 1893 |
| RR/15/12 | Referee's report by Richard Lydekker, on a paper 'The distribution of vertebrate animals in India, Ceylon & Burma' by William Thomas Blanford | 4 January 1901 |
| RR/11/174 | Referee's report by William Thomas Blanford, on a paper 'On the shoulder girdle in ichthyosauria and sauropterygia' by John Whitaker Hulke | 27 April 1892 |
| MC/16/214 | Letter from [William Thomas] Blanford, 72 Bedford Gardens, Campden Hill, to [Michael] Foster | 14 May 1895 |
| NLB/16/822 | Copy letter from Robert William Frederick Harrison, to the Under Secretary of State for India, India Officer, Whitehall, S.W. | 15 June 1898 |
| NLB/16/821 | Copy letter from Robert William Frederick Harrison, to Dr W T Blanford, Fellow of the Royal Society, Chairman of Government Grant Board D | 15 June 1898 |
| MC/16 | Volume 16 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1893-1896 |
| NLB/28/734 | Copy letter from Robert William Frederick Harrison, to William Thomas Blanford, Fellow of the Royal Society, 72, Bedford Gardens, Campden Hill, W. | 9 May 1904 |
| MC/17 | Volume 17 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1897-1899 |
| MC/19 | Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1904 |