The papers are contained in twelve natural and artificial collections: the Bridport Collection, the Croker Collection (see CRK), the Girdlestone Collection, the Haslewood Collection, the Matcham Collection (see MAM), the Monsarrat Collection, the Nelson-Ward Collection, the Stewart Collection (see STW), the Sutcliffe-Smith Collection (see SUT), the Trafalgar House Collection, the Walter Collection and the Western Collection. It includes papers of Lady Hamilton, Lady Nelson, other members of the Nelson family as well as the large amount of 'Nelsoniana' collected by the Museum. Collections in which material relating to Nelson forms only a part are described in Volume II of this Guide, as are volumes or documents acquired singly by the Museum. Collections in other institutions include those at the Nelson Museum, Monmouth, Lloyd's of London and the McCarthy Collection at the Portsmouth Royal Naval Museum, while the bulk of his letter-books are in the British Library. Large number of Nelson letters have been printed and can be traced in Sir Nicholas Harris Nicolas, 'The dispatches and letters of Vice-Admiral Lord Viscount Nelson', (7 vols, London, 1844-1846); Thomas Joseph Pettigrew, 'Memoirs of the life of Vice-Admiral Lord Viscount Nelson', (2 vols, London,1849); Alfred Morrison, 'The collection of autograph letters and historical documents formed by Alfred Morrison', (2 vols, privately printed, 1893-1894) and G.P.B. Naish, 'Nelson' letters to his wife and other documents, 1785-1831 (London, 1958). Notes on the provenance of some of the collections in the Museum are provided by Miss K.F. Lindsay-MacDougall, 'Nelson manuscripts at the National Maritime Museum' the Mariner's Mirror, vol. 41, 1955, pp. 227-232. The most comprehensive of many biographies is Carola Oman, 'Nelson' (London, 1947) The Bridport Collection consists principally of correspondence between Nelson's brother, William Nelson, (later first Earl Nelson), his wife and his children between 1783 and 1794, but there are seventeen letters from Nelson to his brother, 1783 to 1804, as well as a copy of his will and draft codicils. There are letters from Lady Hamilton to William Nelson, 1801 to 1814, and receipts by Lady Hamilton for the pension left her under Nelson's will. The papers are concerned with domestic matters, 1797 to 1805, and honours conferred upon Nelson. (2 boxes, 1 vol). The Girdlestone Collection was purchased from Miss Girdlestone in 1935 and 1939 by Sir James Caird. It was originally collected by Nelson's elder sister, Susanna Bolton, and was handed down through the family to Miss Girdlestone. It consists of letters, 1789 to 1805, written by Nelson to his brother-in-law, Thomas Bolton. There are also a number of memoranda and instructions, 1796 to 1805, as well as family papers, 1731 to 1846 (1 box).