2006-09-26 - St. Louis Chapter Yearbook (AGO) lists it as 11 ranks. -Database Manager
2015-02-03 - From Michael Friesen's "Henry Kilgen, St. Louis Organbuilder" -- [The Gratian organ] "was replaced by Wicks, Op. 4668, in 1952, which was moved to the new 1967 church." -Database Manager
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