Updated through online information from T. Daniel Hancock. -- The church website states that "On Pentecost Sunday, June 4, 1922, the church was completely destroyed by a fire that still remains the worst in Naperville's history. Out of the ashes, the 350 families that comprised Saints Peter & Paul parish at that time, built the magnificent church we have today." The 1869 Gratian organ was also presumably destroyed at that time.

Identified through online information from T. Daniel Hancock. -- In "The Archdiocese of Chicago: Antecedents and Developments," published by St. Mary-s Training School Press, Des Plaines, Ill., 1920, the following is reported "Under Father de la Porte's pastorate the following improvements and additions were made to the church and its property : The present pipe organ was purchased from Joseph Gratian of Alton for $2,300, and was first used on August 15, 1869;…"