1. “A Willing Victim,” The Christian Science Monitor, 28 April, 1916.
  2. Editorial Cartoon, Monitor, 16 April, 1919.
  3. Editorial Cartoon, Monitor, 3 February, 1922.
  4. “When Snubs and Tubby Ruled the Comic Pages,” Monitor, 25 November, 1998.
  5. Erwin D. Canham, Commitment to Freedom: The Story of The Christian Science Monitor (Boston: Houghton Mifflin, 1958), 359–60.
  6. Canham, Commitment to Freedom, 361.
  7. Canham, Commitment to Freedom, 361.