| RefNo | Title | Date |
| IM/Maull/004781 | Walton, William | nd |
| EC/1837/19 | Walton, William: certificate of election to the Royal Society | |
| MC/3 | Volume 3 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1839-1843 |
| MC/3/75 | Letter from [Rev. William] Walton, Allenheads, to Dr. [Peter Mark] Roget, Secretary of the Royal Society | 16 March 1840 |
| MC/3/148 | Letter from Rev. [William] Walton, Allenheads, to Dr. [Peter Mark] Roget, [Secretary of the Royal Society] | 15 March 1841 |
| AP/21/11 | Unpublished observations, 'Meteorological Journal kept at Allenheads, 1400 feet above the level of the Sea, from 1 May to 1 November 1836' by William Walton | 1836 |
| AP/21/10 | Unpublished paper, 'A few remarks on the Helm Wind' by William Walton | 28 November 1836 |
| AP/20/18 | Unpublished observations, 'Meteorological journal at Allenheads' by William Walton | 1 March 1836 |
| AP/21/10/1 | Unpublished manuscript, 'A few remarks on the Helm Wind' by William Walton | 28 November 1836 |
| AP/25/21 | Unpublished observations, 'A meteorological journal for 1841, kept at Allenheads, Northumberland [England], 1400 feet above the level of the sea with an appendix to the same' by W [William] Walton | 24 January 1842 |
| RR/1bis/50 | Referee's report by an unknown referee [Lethes?], on two papers, [attributed] 'A meteorological journal for 1840, kept at Allenheads, Northumberland, with a few remarks on the rain-gauge' by William Walton, and 'On the localities affected by hoar-frost, the peculiar currents of air excited by it, and the temperature during its occurrence at high and low stations' by James Farquharson | [1841] |
| AP/21/10/2 | Unpublished drawing, Helm Bar by William Walton | 28 November 1836 |
| AP/23/42 | Unpublished observations, 'A few extracts from a meteorological journal kept at Allenheads in the county of Northumberland [England]' by William Walton | 16 March 1840 |
| MA/113/1 | Letter from William Walton, Allenheads, near Hexham, to [John David] Roberton, Assistant Secretary, the Royal Society, Somerset House, London | 5 January 1838 |
| MA/113 | Meteorological observations at Allenheads, England, by William Walton | 5 January 1838-December 1842 |
| MA/113/3 | Paper 'A meteorological journal for 1840 kept at Allenheads, Northumberland, with a few remarks on the rain-gauge', by William Walton | 13 March 1841 |
| MA/113/5 | Meteorological observations at Allenheads, England, by William Walton | January-December 1842 |
| MA/113/2 | Abstract of the paper 'A few extracts from a meteorological journal...by William Walton', author unknown | c.March-July 1840 |
| MA/113/4 | Extract of a letter from William Walton, Allenheads, to Luke Howard, with a note by Luke Howard | 4 May [1841] |