Mr Owen allowed the Library to photocopy his research work entitled 'Letters written by the Hall Family Jamaica and London, 1779-1796', including transcripts of letters from the Hon. Charles Hall (1729-1795) in Jamaica to his nephew Edward Hall (1747-1798), surgeon in London and first secretary of the Whig Club; letters from the latter to Charles Hall; and letters from Charles Hall (1751-1797) in Jamaica to his brother Edward Hall, the surgeon.

Records of the Slebech estate, Pembrokeshire, mainly title deeds, [late 13 cent.]-1926, including deeds relating to the Knights Hospitallers of the Commandery of Slebech, mainly 14th cent., ministers accounts, 1357-1605, of the Pembrokeshire estates of the Mortimers, earls of March; manorial records, 1292-1819; letter books, letters, accounts, etc., relating to Nathaniel Phillips's Jamaican sugar plantations, 1759-c.1822; and family papers of the Barlow and de Rutzen families of Slebech and the Phillips family of Lampeter Verfry and Slebech, 1542-[c.1919].