John Joseph Glennon was a prelate of the Roman Catholic Church, serving as Archbishop of St. Louis from 1903 until his death in 1946. He was elevated to the cardinalate in 1946.

Joseph Elmer Ritter was an American prelate of the Catholic Church. He served as Archbishop of St. Louis from 1946 until his death in 1967, and was created a cardinal in 1961. He previously served as auxiliary bishop (1933–1934) and bishop (1934–1946) of the Archdiocese of Indianapolis. Ritter was one of the cardinals elector who participated at the papal conclave in 1963.