M. Niebuhr
From UnAnything Wiki
M. Niebuhr was a 20th century Christian theologian who 20th Christian laity often read, along with M. Berdyaev, M. Maritain, Miss Sayers, or even C.S. Lewis, instead of St. Luke, St. Paul, St. Augustine, Thomas Aquinas, Hooker, or Butler, according to C.S. Lewis. Lewis may have confused him with Reinhold Niebuhr.