Episcopi Vagantes and the Anglican Church. Henry R.T. Brandreth. London: Society for Promoting Christian Knowledge, 1947.
Episcopi vagantes in church history. A.J. Macdonald. London: Society for Promoting Christian Knowledge, 1945.
History of the So-Called Jansenist Church of Holland. John M. Neale. New York: AMS Press, 1958.
Old Catholic: History, Ministry, Faith & Mission. Andre J. Queen. iUniverse title, 2003.
The Old Catholic Church: A History and Chronology (The Autocephalous Orthodox Churches, No. 3). Karl Pruter. Highlandville, Missouri: St. Willibrord's Press, 1996.
The Old Catholic Sourcebook (Garland Reference Library of Social Science). Karl Pruter and J. Gordon Melton. New York: Garland Publishers, 1983.
The Old Catholic Churches and Anglican Orders. C.B. Moss. The Christian East, January, 1926.
The Old Catholic Movement. C.B. Moss. London: Society for Promoting Christian Knowledge, 1964.
