Files of correspondence and transcripts, including letters from the following people: Rev. Francis Blackburne, father of Mrs. Frend, brother of Mrs. Lindsey, 3 letters. Sir Frances Burdett, 1 note, typed by Miss Antrobus. Edward Clark, geologist and traveller, 3 letters about Cambridge. W. Cogan, mathematician, 1 letter about maths, 1824. Miss M. Cooper, Stoke Newington, regarding local events, 1831. T. Dalby, mathematician. Rev. J. Disney, 1 letter about Frend's impending trial. George Dyer, 1 letter to Henry Frend, with the gift of a book, [1820]. F. Davis, 1799, regarding Wakefield. T. Edwards, 1 letter from Bruges, 11 Dec. 1789; 1 note from Sussex, 1802. G. Evanson, 1 letter from Blakenham, 1793, about the trial. George Frend, brother, 1 letter, 1779, from Portugal; 1 letter, 1799, from Canterbury, regarding politics. Marianne Frend, George's wife, 1 letter from Canterbury, regarding business. Mary Frend, sister, 3 letters, typed by Miss Antrobus, 1884-1885. William Frend, 10 letters to Mary, 1784-1789; 2 letters to Frances, daughter; 1820-1831; 4 letters to Harriet, daughter; 1818-1831; and 6 letters to Sophia, daughter, 1820-1831. R. Furness, New England, 26 March 1833. R.E. Garnham, Bury St Edmunds, 4 letters, regarding Unitarian business and the trial. Mary Graham, 4 letters about mathematics, 1827. Duke of Grafton, 2 letters, 1808, regarding marriage; note, 1810. John Hammond, Fenstanton, retired Unitarian turned farmer, 14 letters about personal life, politics and religion. Samuel Hart, Jewish friend, Soho, 1 letter, 1831. Busick Harwood, Cambridge, 1792. Robert Hibbert, New Jersey, 25 Feb. 1839; 17 July 1835. Geoffrey Higgins, anitquarian, Yorkshire, 1803, about Volunteers; 1808, 1818, 1827, 1831, and 1832, about family, travel, etc. Charles Hutton, mathematician, 1791. T. Jones, Bursar, Trinity College, Cambridge, 18 Dec. 1795; 13 Feb. 1800, regarding the election; 1802, regarding Herbert Marsh. J. Lea, mathematician, 2 letters, 1808 and 1809. Lambert, Trinity College, 29 Jan. 1808, offering congratulations on marriage; 7 Nov. 1808, regarding Lindsey's death. Theophilus Lindsey, 26 letters, 1788-1801. Mrs T. Lindsey, Mrs. Frend's half-sister, 12 letters, 1794-1803. Mrs. T. Lockhart, Mrs. Frend's half-sister, 12 letters, 1794-1803. B. Lockhart, mathematician, 7 Nov. 1827; others, 1827 and 1838, on maths. Capel Lofft, reformer, 1807, on annuities and Opie. Thomas Manning, friend of Charles Lamb, letter to Maseres, 1797; letter to Frend, 1825. J. Mottley, 1 letter, 1832, about Spring tides. Mrs. Marsh, wife of the Bishop of Peterborough, 19 Jan. 1813, regarding politics and personal matters. T. Newton, 1801, regarding maths. Joseph Priestley, letter about translations, 11 Aug. 1790. Whitaker de Rambouillet, Paris, 1826, regarding Protestant priests. Richard Reynolds and Mrs. Paxton, 36 letters, 1790-1812. G. Sproughton Rogers, 14 Sep. 1792. Rev. Matthew Robinson, Lord Rokeby, 4 letters regarding the trial, 1793. James Six, scientist, and James Six, jr., letters, 1782, 1783, 1786, and 1789. J. Sims, mathematician, 4 letters, regarding maths. Richard Tylden, school friend, 3 letters, 1774, 1776 and 1806. Robert Tyrwhitt, Hebrew scholar, 1799, '96, 1805, and 1806. Felix Vaughan, lawyer, 2 letters from France, 19 July 1790 and 6 Dec. 1790. G. Williams, M.P., 10 August 1830. Miss E. West, Oxford, March 1821. R. Wright, unitarian missionary, 1822. J. Wilson, mathematician, Trowbridge, regarding maths.