1. Edinburgh University Library: Papers relating to William Wallace, Dc.4.101.
2. British Library, London, Macvey Napier Correspondence: Add. MSS. 34,611, William Wallace to MN: (a) f, 189, 3 April 1815; (b) f, 286, 28 Sept. 1815. J. Ivory to MN: (c) f, 334, 5 Feb. 1816; (d) f, 324, 10 Jan. 1817; (e) f, 439, 29 August 1817; (f) f, 308, Nov. 1819. R Woodhouse to MN: (g) f, 63, 22 May 1814. Add. MSS. 34,612, Thomas Young to MN: (h) f, 35, 22 Feb. 1817.
3. British Library, London, Charles Babbage Correspondence: Add. MSS. 37,182, James Ivory to CB: (a) f. 36, 6 Nov. 1815; (b) f. 50, 21 Feb. 1816; (c) ff. 62–70, Mar./April 1816; (d) ff. 127–129, July 1819; (e) ff. 149–158, printed testimonials 1819. Edward F. Bromhead to CB: (f) ff. 13–14, n.d. [1813?].
4. Royal Society of London, Correspondence of Sir John F. W. Herschel: William Wallace to JH: (a) HS.18.21, 31 July 1815; (b) HS.18.22, 29 Oct. 1817; (c) HS.18.27, 21 Oct. 1840. JH to William Wallace: (d) HS.20.25, 23 Sept. 1815; (e) HS.20.226, Dec. 12 1825, (copybook). JH to Charles Babbage: (f) HS.20.38, 30 Jan. 1817, (copybook). JH to David Brewster: (g) HS.20.175, 27 Nov. 1824, (copybook).
5. University College London, Brougham Papers: David Brewster to Henry Brougham: (a) 26,612, 17 Oct. 1831. James Ivory to HB: (b) 8,614, 22 Oct. 1831; (c) 37,678, 10 Jan. 1832. John Leslie to HB: (d) 16,442, 11 Sept. 1831. William Wallace to HB: (e) 27,385, 10 July 1822; (f) 37,952, 15 April 1832; (g) 34,879, 8 Aug. 1832; (h) 27,711, 19 May 1835; (i) 27,956, 22 May 1839.