See this online ebook:

  • Pastoral letter of the Archbishops and Bishops of the United States Assembled in Conference at the Catholic University of America, September, 1919 (Washington, D.C., The National Catholic Welfare Council, 1920). Available at Open Library and  Internet Archive, with a 2nd copy here. [N.B., This is a restatement of doctrine and an exhortation on all aspects of the Catholic life in the United States.]

In solidarity with Catholic Christians in the United States of America in their celebration of Independence Day.