All the letters are arranged alphabetically by correspondent and, where required, by date under each name.
Bartley, George, 1834-1837: folios 1-3D;
Bartley, Nehemiah, 1892: folios 4-6;
Bartley, Sarah, 1826: folios 7-10;
Barton, Bernard, 1812-1847: folios 11-47;
Barton, F.B., 1830: folios 48-51:
includes letter, ?1830, of “A.F.E…anonymous author” to John Murray II: folios 50-51;
Barton, Frank, 1905-1910: folios 52-54;
Barton, H.E., 1906: folio 55;
Barton, Harriet, 1872: folios 56-57;
Barton, Nathaniel, 1854: folios 58-59;
Barton, Robert, 1817-1818: folios 60-63;
Barwell, Louisa, 1834-1835: folios 64-73;
Barwick, George, 1927: folios 74-75;
Barzoni, Vittorio, 1814: folios 76-77.