| Reference number | Title | Date |
| EC/1739/02 | Huxham, John: certificate of election to the Royal Society | 5 April 1739 |
| EL/H3/115 | John Huxham to James Jurin | 1725 |
| EL/H4/29 | John Huxham, dated at Plymouth, to Cromwell Mortimer | 30 March 1739 |
| MM/20/8 | Letter from John Huxham to Cromwell Mortimer, Secretary, Royal Society | 8 June 1739 |
| RBO/15/79 | 'An account of the disease and appearances upon opening the Body of a Person who died of an uncommon Colick' by Dr Huxham of Plymouth to Dr Jurin | 1731 |
| MM/20/16 | Letter from William Barlow to Cromwell Mortimer, Secretary, Royal Society | 11 May 1744 |
| CLP/5/32 | Letter, regarding meteorological observations from John Huxham to [James Jurin] | 10 January 1725 |
| RBO/13/74 | Account of an epidemic disease 'Danmonius' which occurred in 1724 by John Huxham of Plymouth | nd |
| L&P/2/581 | Letter, 'Of ascertaining a new genus of plants: Huxamia' from Alexander Gordon to John Huxham | 1755 |
| LBO/18/198 | Copy letter from John Huxham, Plymouth | 25 July 1727 |
| LBO/18/116 | Copy letter from John Huxham to James Jurin | 1725/1726 |
| L&P/2/150 | Letter, 'Of the Northern Lights seen 15 Feb 1749/50' from John Huxham to Cromwell Mortimer | 18 April 1750 |
| L&P/1/95 | Letter, 'On polyi taken out of the hearts of sailors' from John Huxham to Cromwell Mortimer | 23 April 1742 |
| L&P/5/82 | Letter, 'A high tide and bore on 21 January' from John Huxham to William Watson | 1769 |
| L&P/4/307 | Letter, 'A remarkable emphysema' from John Huxham to William Watson | 1766 |
| L&P/3/287 | Letter, 'Of the effects of the hot weather in July 1757' from John Huxham to William Watson | 28 January 1758 |
| L&P/4/21 | Letter, 'Of dislocations' from John Huxham to William Watson | 11 May 1760 |
| L&P/3/328 | Letter, 'Of an abdominal tumour' from John Huxham to William Watson | 26 March 1758 |
| L&P/2/548 | Paper, 'A dissertation of antimony' by John Huxham | 1754 |
| L&P/4/311 | Letter, 'Influence of the imagination in pregnancy' from John Huxham to the Royal Society | 6 July 1765 |
| L&P/2/211 | Letter, 'Of a piece of slate' from John Huxham to Cromwell Mortimer | 19 May 1751 |
| L&P/4/20 | Letter, 'A luxated thigh-bone reduced' from Charles Yonge to John Huxham | 1760 |
| L&P/3/102 | Letter, 'Of the case of a man who died after swallowing molten lead at the Eddystone fire' from John Huxham to William Watson | 31 January 1756 |
| L&P/2/553 | Paper, 'Effects of lightning at Plymouth' from John Huxham to William Watson | 1754 |
| L&P/3/31 | Letter, 'Of local climate and diseases' from Lionel Chalmers to John Huxham | 12 March 1755 |
| L&P/4/242 | Paper, 'An account of an uncommon hydrocephalus' by John Huxham | 1765 |
| L&P/4/285 | Paper, 'Account of an uncommon dropsy' by John Huxham | 20 July 1765 |
| L&P/3/275 | Letter, 'Heat of the air in July 1757' from John Huxham to William Watson | 19 July 1757 |
| L&P/4/106 | Letter, 'Three surgical cases' from John Huxham to William Watson | 5 February 1762 |
| L&P/4/270 | Letter, 'On the treatment of snake-bite with salt' from Benjamin Gale to John Huxham | 1765 |
| L&P/5/160 | Letter, 'Of a boy who died of a gunshot wound' from Thomas Woolcombe to John Huxham | 25 June 1769 |
| IM/005890 | Huxham, John | nd |
| CLP/5/41 | Letter, regarding meteorological observations for December 1724 from John Huxham to James Jurin | 2 February 1725 |
| CLP/5/44 | Paper, regarding meteorological observations from Plymouth for 1724 by [John Huxham] | 1724 |
| IM/002333 | Huxham, John | nd |
| P/0075 | Portrait of Huxham, John | |
| RBO/12/22 | 'Short account of the Anomalous Epidemic Small Pox beginning at Plymouth in August 1724 and continuing to the Month of June 1725' by Dr Huxham, physician at Plymouth | 1725 |
| L&P/4/410 | Letter, 'Meteorological observations at Plymouth and of intense cold there during the winter' from William Watson and John Huxham | 1767 |
| L&P/1/334 | Paper, 'Results of a post-mortem examination' by John Huxham | 1744 |
| CLP/5/31 | Letter, regarding details of the thermometer, barometer and hygroscope used for observations from John Huxham to James Jurin | 24 April 1724 |
| EL/H3/113 | John Huxham, dated at Plymouth, to James Jurin | 1723 |
| EL/H3/117 | John Huxham, dated at Plymouth, to James Jurin | 25 July 1727 |
| EL/H3/116 | John Huxham, dated at Plymouth, to James Jurin | 18 October 1726 |
| EL/H3/114 | John Huxham to James Jurin | 1724 |
| EL/H3/119 | John Huxham, dated at Plymouth, to James Jurin | 14 February 1730 |
| EL/R2/38 | William Rutty to Dr Huxham | 25 March 1730 |
| EL/H3/118 | John Huxham to James Jurin | 19 January 1728 |
| L&P/1/127 | Letter, 'Mrs Stephen's dissolvements of the stone' from John Huxham to Thomas Stack | 1742 |
| L&P/4/268 | Letter, 'History and practise of inoculation in the British American colonies' from Benjamin Gale to John Huxham | 1763 |
| L&P/2/229 | Letter, 'Of a body in a vault of Staverton Church, Devon' from John Huxham and Nicholas Tripe to Thomas Stack | 29 June 1750 |
| L&P/3/55 | Letter, 'Agitation of waters at Devon and Cornwall on Nov 1' from John Huxham to William Watson | 23 November 1755 |
| CLP/14ii/36 | Letter, regarding the case of a man who died of an uncommon colic from Dr [John] Huxham to Dr [James] Jurin | 14 March 1731 |
| CLP/14ii/47 | Paper, 'De morbo colico danmoniorum eoque maxime epidemico' [On a colic epidemic] by Dr John Huxham | 1724 |