Poirier, Rev. E. (1904). "The Eucharistic Movement and the Third Eucharistic Congress of the United States". In Third Eucharistic Congress (ed.). Third Eucharistic Congress of the United States. pp. 5–6. Retrieved February 7, 2024.
John DeMayo and Joseph Casino, The Forty-First Interional Eucharistic Congress, August 1–8, 1976: A History, (Pennsauken: DeVilieger, 1978) 6, 144; MC 80, 100.611: Committee on Special Guests: Final Report to the Board of Governors, August 16, 1967, https://omeka.chrc-phila.org/items/show/8121.
MC 80, 100.1548: Letter to Cardinal Krol from Dorothy Day January 29, 1976, https://omeka.chrc-phila.org/items/show/8123; MC 80, 100.1673: Letter to Cardinal Krol from Mother Teresa.