Catholic Church. Congregatio Sacrorum Rituum. Romana seu Mechlinien. beatificationis et canonizationis ven. servi Dei Joannis Berchmans, scholastici e Societate Jesu, 1864.
LC database, 5-19-93 (hdg.: Berchmans, Jan, Saint, 1599-1621; usage: St. John Berchmans)
Lindsay, L. Panégyrique de saint Jean Berchmans, 1888.
New Catholic Encyclopedia, 1967, Vol. VII (hdg.: Berchmans, John, 1599-1621)
Phone call to St. John Seminary Library, Plymouth, MI, 4-1-86 (Berchmans, John, Saint, 1599-1621) canonized, 1888.
UnM/Canadiana files (hdg.: Berchmans, John, Saint, 1599-1621; usage: Jean Berchmans)
Wikipedia 5 Nov. 2014 (Saint John Berchmans (Dutch: Jan Berchmans) (13 March 1599-13 August 1621) was a Jesuit scholastic and is a saint in the Roman Catholic Church.)