1. Whitcomb was listed in The Christian Science Journal as a practitioner in the Boston area from 1897 until 1932. She also advertised as a Christian Science teacher from 1905 until 1932.
  2. M. Ethel Whitcomb, “Remarks made at a Meeting in the interests of the Periodicals, held in The Mother Church, The First Church of Christ, Scientist, in Boston, Massachusetts, October 15, 1925,” 1925, Reminiscence, 2.