All the letters are arranged alphabetically by correspondent and, where required, by date under each name.

Atlas (newspaper), 1835: folios 1-2;

Atlay, James, 1869: folio 3;

Atteridge, Andrew, 1872: folios 4-5;

Attfield, James, 1829: folios 6-7;

Attinger Frères, 1916: folio 8;

Attree, Thomas, 1829: folios 9-10;

Aubert, Eugene, 1903: folios 11-14;

Aubertin, John, 1899: folios 15-17;

Aubrey, William, 1870-1903: folios 18-22;

Aucher, P. Pasquale, 1837: folios 23-24;

Austen, Benjamin, 1849-1855 and uncertain date: folios 25-49;

Austen, John, 1855-1858 and incomplete, undated letter: folios 50-69;

Austen, Samuel, 1870: folios 70-71;

Austen, Sara, 1835-1878 and uncertain dates: folios 72-152:

1830s: folios 72-86;

1840s: folios 87-108;

1850s: folios 109-120;

1860s: folios 121-128;

1870s: folios 129-136;

uncertain dates: folios 137-152;

Austey, T. Chisholm, 1852: folios 153-158.