"To learn in the afternoon," Continuous Learning. The Journal of the Canadian Association for Adult Education, 2 (3) [May-June, 1963]: 102-105 / Wilder Graves Penfield
"Unity and Disunity: Canada and the Brain Race," The Henry Marshall Tory Lectures, 1964, (Toronto: Copp Clark Publishing Co., 1964) 26pp. / Wilder Graves Penfield