[1] Originally attending Mungret College in Limerick, he followed a call for priests in the United States and entered St. Patrick Seminary in Menlo Park, California, in 1928.

[2] Upon his return to the States, he did pastoral work in the Archdiocese of Los Angeles, also serving as secretary to Archbishop John Joseph Cantwell from 1938 to 1946.

During his tenure, he supported the organization of a labor union for Central Valley farm workers, and sought to help wine producers and grape pickers reconcile their differences.

[4] The end of McIntyre's tenure saw tensions with the clergy and minorities[2] and, following Manning's ascension, the new archbishop stated, "My first reaction was to make it known that I was here to listen.

[2] Shortly after becoming Archbishop, a majority of the Sisters of the Immaculate Heart of Mary, who had feuded with McIntyre, left the religious life and founded a lay community.

"[7] In 1981, John Paul II sent him as a special papal envoy to the celebration in Drogheda, Ireland of the third centennial of Saint Oliver Plunkett's martyrdom.