Mabel Emmeline Smyly (died 1942) (1872–1942) Parents Philip Crampton Smyly Selina Maria Plunket Children Horace Donough O'Brien Brendan Edward O'Brien Mary Elinor O'Brien David Lucius O'Brien Brigid Ganly Siblings Philip Crampton Smyly J. Gilbert Smyly Partners Dermod O'Brien