I have read Dietrich Bonhoeffer's books and just finished Eric Metaxas' long biography on him. I have lots of questions and eager to have Book Club in a few weeks to hear the discussion. I looked up his fiance Maria. He was 36 when he proposed and she was 18. She went on to study Mathmatics in Germany and the US. She married twice and had two sons by the first marriage. Lived in Boston. She died in 1977.