| Reference number | Title | Date |
| EC/1917/08 | Macdonald, John Smyth: certificate of election to the Royal Society | |
| RR/15/389 | Referee's report by Augustus Desire Waller, on a paper 'The decline of the injury current in mammalian nerve, and its modification by changes of temperature' by Sowton and John Smyth Macdonald | 29 January 1903 |
| NLB/21/108 | Copy letter from Theodore E James, to Professor William Dobinson Halliburton, Fellow of the Royal Society, Church Cottage, 17 Marylebone Road, N.W. | 30 July 1900 |
| NLB/21/362 | Copy letter from Robert William Frederick Harrison, to John Smyth Macdonald, [Fellow of the Royal Society], University College, Liverpool | 5 November 1900 |
| NLB/41/93 | Copy letter from Robert William Frederick Harrison, to Professor [John Smyth] Macdonald, Fellow of the Royal Society | 13 October 1909 |
| RR/21/111 | Referee's report by Keith Lucas, on a paper 'Man's mechanical efficiency in work performance and the cost of the movements involved (treated separately)' by John Smyth Macdonald | [June 1914] |
| NLB/53/365 | Copy letter from [William Bate] Hardy, Secretary of the Royal Society and FRS; to Professor [John Smyth] MacDonald, FRS | 22 July 1916 |
| NLB/65/620 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [John Smyth] Macdonald, FRS | 28 November 1923 |
| NLB/65/407 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, KCMG, FRS | 26 October 1923 |
| NLB/71/692 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [John Smyth] Macdonald, FRS | 5 October 1928 |
| RR/15/388 | Memoranda from Robert William Frederick Harrison, and reply from William Dobinson Halliburton and Francis Gotch, on a paper 'The decline of the injury current in mammalian nerve, and its modification by changes of temperature' by Sowton and John Smyth Macdonald | 19 December 1902 |
| MC/31/13 | Letter from [William Maddock] Bayliss, Honorary Secretary of the Physiological Society, Institute of Physiology, University College, Gower Street, London, W.C, to Mr [Robert] Harrison, [Royal Society] | 3 December 1916 |
| MC/31/196 | Letter from [Charles Scott] Sherrington, 9 Chadlington Road, Oxford, to [Robert] Harrison, [Royal Society] | 15 January 1916 |
| MC/32/177 | Letter from [John Smyth] Macdonald, School of Physiology, Thompson Yates Laboratories, The University, Liverpool, to The Secretaries, The Royal Society | 5 June 1917 |