Writer Frederick Buechner tells about his wife's greatgrandfather, a man named George Shinn. Shinn was a pastor back in 1880. He was summoned one midnight to the bedside of an old woman who lived by herself. She had little money and few friends, and she was dying. She told Shinn that she wanted another woman to come stay with her for such time as she might have left, so Shinn and the old woman's doctor struck out in the darkness to try to dig one up for her. It sounds like a parable the way it is told. They knocked at doors and threw pebbles at second story windows. One woman s…