Marianne Harcourt Vernon (1814-1873) (1814–1873) Parents Frances Eyre Granville Harcourt-Vernon Children Lucy St. John-Mildmay Siblings Granville Harcourt-Vernon unknown Harcourt Vernon Charles Egerton Harcourt Vernon Evelyn Harcourt Vernon Henry Arthur Harcourt Vernon Partners Humphrey St John-Mildmay