Hervey John de Montmorency (1840-1873) (1840–1873) Parents John Pratt de Montmorency Henrietta O'Grady Children Henrietta Kathleen Montmorency Siblings Raymond Oliver de Montmorency Rose Emily de Montmorency Katherine Maria de Montmorency Waller de Montmorency Mervyn Standish de Montmorency Partners Grace Kathleen Grove