Sister Barker

In the novel Nemesis, Sister Barker is a senior nurse at Carristown Hospital. Elizabeth Temple was taken to this hospital after being injured by a falling boulder at Jocelyn St. Mary. Sister Barker made the arrangements for Jane Marple to sit by the bed of Elizabeth Temple. Miss Temple was mostly unconscious but had occasional lucid moments when she asked to speak to Miss Marple. Miss Temple was not expected to regain consciousness but it was considered important to hear what Miss Temple had to say and she might only speak freely to the person she expected.

Sister Barker  was described as a  tall,  thin  woman with  a  low,  decisive  voice  and dark  grey  eyes. She had apparently the habit of looking at a person and then looking away quickly,  that  had  a  habit  of  looking  at  you  and  looking  away almost immediately, as though one had "been inspected  in  a  very  short  space  of  time,  and  judgement  pronounced".