Updated through online information from Jeff Scofield. -- 11-rank Antiphonal added by Casavant 1955 as Op. 2305-A; new 4-manual console added 1964--possibly a Reisner; additions by Aldo Bertorelli/Flannigan 1967; renovated 1999 by Reynolds Associates; console completely rebuilt.
Additional notes and photographs under the 1999 Reynolds Associates entry.
From the 2007 Organ Atlas: Antiphonal added by Casavant in 1955; new console in 1964; Additional ranks by Bertorelli/Flannigan in 1967; Renovated with tonal changes, new chests for antiphonal by Reynolds Associates, Inc. in 1999.
Additions by Casavant 1970, 4-68. Renovated by Reynolds Associates of Marion, IN as of 2005. (Information from Joseph G. Roberts in 2005.)
Originally demonstrator organ in Kimball Hall in Chicago . The Deagan Chimes were playable from the organ console and from a keyboard placed in the church secretary's office. Virgil Fox played two identical dedicatory recitals on October 18, 1940.