Vol. II. xixth cent. includes: ff. 6-17 Francis Evans: Letters to Sir W. Betham: 1806. f. 76 Sir Boyle Roche, Baronet: Letter to Sir W. Betham: 1805. ff. 98, 100 Sir Richard Sutton, Baronet; Under-Secretary of State: Letters to Sir W. Betham: 1798.
Vol. III. xixth cent. includes: ff. 49-72 Francis Evans: Letters to Sir W. Betham: 1806. f. 82 Thomas Ayton: Letter to W. Oakeley: 1791. ff. 83, 85, 99, 101, 112, 114 Thomas Blore, Historian of county Rutland: Letters to Sir W. Betham: 1804-1805. f. 87 Sir John Blake, Baronet; of Menlo: Letter...
Vol. IV. xixth cent. includes: ff. 40, 45, 50-98, 111 C- Tonson: Letters to Sir W. Betham: 1807-1808. f. 102 Richard Nash: Letter to Sir W. Betham: 1809. f. 188 Edmund Lodge, Lancaster Herald: Letter to Sir W. Betham: 1808, 1816.