John Heenan was born in Ilford, Redbridge, as the youngest of the four children of the Irish John and Anne (née Pilkington) Heenan. He auditioned for Westminster Cathedral Choir School at age 9, but Sir Richard Terry rejected him for his "metallic voice". Heenan studied at St. Ignatius College in Stamford Hill, Ushaw College in Durham, and the Venerable English College in Rome before being ordained to the priesthood on 6 July 1930. He then did pastoral work in Brentwood until 1947, at which time he became Superior of the Catholic Missionary Society of England and Wales. In this position, Heenan criticized the United States for being too concerned about communism, and not enough about spiritual matters. By this time he had published a biography (1943) of Arthur Cardinal Hinsley, Archbishop