Frances Wemyss (1722-1789) (1722–1789) Parents Janet Charteris James Wemyss, 5th Earl of Wemyss Children Sir James Steuart Denham, 8th Baronet Siblings Lady Anne Wemyss Walpole Wemyss Francis Wemyss-Charteris Lady Helen Wemyss David Wemyss, Lord Elcho James Wemyss Partners James Steuart