In 1871, Cook's work exposing the poor conditions in factories in Lynn, Massachusetts was publicly praised by Mary Baker Eddy, the founder of The First Church of Christ, Scientist,Safronoff, Cindy (2015). Crossing Swords: Mary Baker Eddy vs Victoria Clafin Woodhull and the Battle for the Soul of Marriage - The Untold Story of America's Nineteenth-Century Culture War. Seattle: This One Thing. p. 197. however, Cook later became a noted critic of Eddy and her ideas. Eddy responded with a pamphlet, later expanded into the book No and Yes which opposed Cook's views on the subject. Eddy also spoke at one of Cook's Tremont Temple lectures in defense of Christian Science.Roger Eastman. ed. (1993). The Ways of religion : an introduction to the major traditions. New York : Oxford University Press. pp. 452, 468-470
