In 1966, DuBay published a controversial book, The Human Church, which sharply criticized the organization and structure of Roman Catholicism and stressed the need for Catholic leaders to reform and reorient the church. The book, which was published without the approval of Cardinal McIntyre or the Los Angeles Archdiocese, sparked controversy and debate within the Catholic church and generated a considerable amount of public discussion regarding the church's practices. Included in the file are letters addressed to DuBay from readers regarding their opinions of the book and its reform-oriented message.