1. Mary Baker Eddy, Retrospection and Introspection (Boston: The First Church of Christ, Scientist, 1901), 10.
  2. Mary Baker Eddy Mentioned Them (Boston: The Christian Science Publishing Society, 1961), 32.
  3. Lyman P. Powell, Mary Baker Eddy: A Life Size Portrait (Boston: The Christian Science Publishing Society, 1991), 310 .
  4. Hugh Black, Culture and Restraint (New York: Fleming H. Revell, 1901), 349-50.
  5. Eddy, Message to The Mother Church for 1902 (Boston: The First Church of Christ, Scientist, 1902), 10.
  6. The New York Times, September 22, 1912.
  7. Ibid., September 27, 1912.
  8. Francis Brown, “Hugh Black,” The Outlook, November 24, 1906, 744.