Althorp Papers. Vol. mcdlxiii (ff. 180). Letters from Richard Watson (1800-1852), son of the 2nd Baron Sondes, and Lavinia Watson, daughter of Lord George Quin; 1842-1854.
Althorp Papers. Vol. mcdlxiv (ff. 231). Letters from Thomas Dundas, Earl of Zetland (1795-1873) and Sophia Jane, née Williamson, Lady Zetland (1803-1865); 1839-1854. Partly printed.
Althorp Papers. Vols. mcdlxv-mcdlxxiv. General correspondence, chronologically arranged; 1831-1855. Partly printed, partly copies. Partly French. Contains letters received by Appleyard and some draft versions of Appleyard’s replies where the letter to which he is replying is contained in the volume. Eleven volumes.