William Fitzwilliam, 2nd Earl Fitzwilliam in the peerage of Great Britain, 4th Earl in the peerage of Ireland, was the son of William Fitzwilliam, 1st and 3rd Earl, and his wife Anne, daughter of Thomas Watson-Wentworth, 1st Marquess of Rockingham. On the death of his father, Fitzwilliam, aged eight, inherited the two earldoms of Fitzwilliam and he became one of the richest men in Britain. In July 1794 Fitzwilliam joined the cabinet as Lord President of the Council with the view to becoming Lord Lieutenant of Ireland thereafter. He went to Ireland on 8 January 1795 and immediately campaigned for Catholic emancipation to ease much of the unrest he witnessed and heard reported. He faced strong opposition from members of Parliament and the king, who felt it would contradict sovereign rule, and Fitzwilliam was recalled from Ireland in February of the same year. From 1798 to 1819 he served as Lord Lieutenant of West Riding, Yorkshire. After the death of his wife Lady Charlotte Ponsonby, in 1822, he married Louisa, widow of William Ponsonby, 1st Baron Ponsonby. He was succeeded by his only surviving son from his first marriage, Charles William Wentworth Fitzwilliam.
Carden Terry (1742-1821) was apprenticed in Cork in 1758, registered his mark in 1784 and became a Freeman in 1785. His eldest daughter Jane married John Williams in 1791 and John entered into partnership with Carden Terry in 1795. John Williams died in 1806 and his widow continued in partnership with her father until his death in July 1821, with the business closing soon after. Jane died in 1845.