Marjorie Joyce Llewellyn (1917-1971) (1917–1971) Parents Magdalene Anne Harries Sir David Llewellyn, 1st Baronet Children Rowland Mark Byers John Francis David Byers David Stafford Reid Byers Siblings Sir Harry Llewellyn, 3rd Baronet Sir Rhys Llewellyn, 2nd Baronet Elizabeth Aileen Maud Llewellyn William Herbert Rhydian Llewellyn David Llewellyn Magdalene Clare Llewellyn Margaret Elaine Llewellyn Partners Frank May Reid Byers