0 To Our Beloved Sons: William O'Connell, Cardinal Priest of the Holy Roman Church, Archbishop of Boston, Dennis Dougherty, Cardinal Priest of the Holy Roman Church, Archbishop of Philadelphia, and to all the Venerable Brethren, the Archbishops, Bishops and Ordinaries of the United States of America in Peace and Communion with the Apostolic See.
Source: Sertum Laetitiae (Vatican.va)