| RefNo | Title | Date |
| EC/1919/05 | Evans, John William: certificate of election to the Royal Society | |
| NLB/61/496 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [John William] Evans, FRS; Imperial College of Science | 12 July 1921 |
| NLB/59/193 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Dr. [John William] Evans, FRS; Imperial College of Science, South Kensington, S.W. | 23 July 1920 |
| NLB/65/56 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [John William] Evans, FRS | 19 July 1923 |
| NLB/70/94 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [John William] Evans, FRS; Combe Martin, Devon | 22 December 1926 |
| NLB/64/899 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to John William Evans, the President of the Geological Society of London, Burlington House, W.1 | 7 July 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/67/653 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Dr [John William] Evans, CBE, FRS | 7 February 1925 |
| NLB/66/806 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [John William] Evans, FRS, W.1 | 14 July 1924 |
| CD/5/17 | Copy letter from the Royal Society, to Professor [John] Graham Kerr, Professor [John Stanley] Gardiner, Professor [James Thomas] Wilson, Sir [David] Prain, Dr [Arthur William] Hill, Sir Arthur Keith, Sir [Alfred Daniel] Hall, Professor [Robert] Newstead, Colonel [Henry George] Lyons, Dr [John William] Evans, Sir [Richard] Threlfall, Sir [John] Cadman | 18 January 1923 |
| NLB/68/445 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to the Comptroller General; Department of Overseas Trade, 35 Old Queen Street, S.W.1. | 13 July 1925 |