Catherine Onslow (died 1741) (d. 1741) Parents Mary Foote Sir Arthur Onslow, 1st Baronet Children unknown son Clerke unknown daughter Clerke unknown daughter Clerke John Clerke Sir William Clerke, 5th Bt. unknown daughter Clerke unknown daughter Clerke Siblings Richard Onslow, 1st Baron Onslow Mary Onslow Foot Onslow Partners Sir William Clerke, 3rd Bt.