Lucius O'Brien Irish Dean (1842-1913) (1842–1913) Parents Lucy Caroline Gabbett William Smith O'Brien Children Donough Richard O'Brien William Lucius Robert O'Brien Lucy Mabel O'Brien Honor Alice O'Brien Charles Murrough O'Brien Charlotte Grace O'Brien Eileen O'Brien Siblings Lucy Josephine O'Brien Charles Murrough O'Brien Charlotte Grace O'Brien Edward William O'Brien Partners Emily Mary Hannah Montgomery