Scope and Content Correspondence to, from, and mentioning Pierz, including four letters to Bishop Frederick Résé of Detroit (in German 1837-1839); 48 letters to Bishop Peter Lefevre of Detroit (in French and English) which include mission reports from Arbre Croche, Michigan, (1842-1852); summaries of letters from Bishop Lefevre to Pierz (1835-1853); and letters mentioning Pierz from records of the Diocese of Detroit (1840) and the Archdiocese of Cincinnati (1854) and from the papers of Richard Henry Clarke...