Contains papers of the following: Hay: Earl of Erroll, 1769; Earl of Kinnoull, 1724-1819, with allusions to proposed Tay Bridge and linen-manufacture; of Naughton, 1731; other Hays, 1686-1734; Headley, 1770-1772; Henry, William, chief clerk of John Mackenzie, Writer to the Signet, on Mackenzie’s business and Edinburgh events, 1752-1778; Buchan-Hepburn of Smeaton-Hepburn, 1772-1776.