Correspondence and papers of William Gilpin, with later Gilpin family papers, consisting of:
- Manuscripts of and relating to Gilpin's published works, 1763-94, including:
- Observations on the coasts of Hampshire, Sussex, and Kent, relative chiefly to picturesque beauty ... 1774 (London, 1804)
- Observations on several parts of the counties of Cambridge, Norfolk, Suffolk, and Essex. Also on ... North Wales; ... in two tours ... 1769 ... [and] 1773 (London, 1809)
- Observations on the River Wye, and several parts of South Wales ... 1770 (London, 1782)
- Observations, ... 1772, on several parts of England; particularly the mountains, and lakes of Cumberland, and Westmoreland (2 vols., London, 1786)
- Observations on the Western parts of England ... [and] the Isle of Wight (London, 1798)
- Observations ... made in the year 1776, on several parts of Great Britain; particularly the High-lands of Scotland (2 vols, London, 1789)
- The life of Thomas Cranmer, Archbishop of Canterbury (London, 1784)
- Remarks on forest scenery, and other woodland views ... illustrated by the scenes of New-forest in Hampshire. In three books (2 vols, London, 1791)
- Three essays: on picturesque beauty; on picturesque travel; and on sketching landscape: to which is added a poem, On landscape painting (London, 1792)
- Three dialogues on the amusements of clergymen (London, 1796)
- Moral contrasts: or, the power of religion exemplified under different characters (Lymington, 1798)
- Other papers of Gilpin, ca. 1759-1803, including Gilpin's punishment book kept at Cheam School, Surrey, 1759-66
- Correspondence of Gilpin, 1741-1853
- Papers of William Gilpin the younger, 1779-1848, including his journal, and related notebooks, 1793-1847
- Papers of other members of the Gilpin family, 1658-1829
- Miscellaneous papers, 1670-1927, including the diary of Samuel Benson, 1835-79