Lady Cecil Hamilton (1770-1819) (1770–1819) Parents George Hamilton Elizabeth Onslow Children Cecil Frances Hamilton Elizabeth Mary Copley Maria Copley Sir Joseph William Copley, 4th Bt. Siblings Isabella Hamilton Rachel Hamilton Elizabeth Hamilton Harriot Hamilton Catherine Hamilton Mary Hamilton Anne Hamilton Jane Hamilton unknown son Hamilton George Hamilton unknown son Hamilton Partners Sir Joseph Copley, 3rd Bt. John Hamilton, 1st Marquess of Abercorn