See Reinhold Niebuhr’s letter “To the Church Council, Bethel Church, Detroit,” January 22, 1930; a copy was generously given to me by the Niebuhr scholar Professor Ronald Stone, Niebuhr’s last teaching assistant; it is also found in the Library of Congress in Washington, DC; see also Detroit Times, August 8, 1931; and Niebuhr, Leaves, p. 222.