Four non-original ranks have been added through the years.
Swell 2 now has a Sesquialtera II. It was added in the late 90's / early 2000's by Paul Jernigan to replace an Otto Hoffman mixture.
The Great now has a Harmonic Flute 4'. It also plays at 8' pitch, but there's no extension; 61 pipes.
The Positiv is now home to a Prinzipal 4'. The used Wicks pipes blend nicely with the division and were added at the recommendation of Dr. Charles Callahan. Paul Jernigan from Houston oversaw this installation.
This brings the updated rank count to 51 ranks.
The console and wiring were replaced with Peterson SSL in the early 2000's.
No other known changes.
Identified through information adapted from E. M. Skinner/Aeolian-Skinner Opus List, by Sand Lawn and Allen Kinzey (Organ Historical Society, 1997), and included here through the kind permission of Sand Lawn:
Replaced 1901 Kimball; dedication recital played by Alec Wyton on September 16, 1962; additions in 1986 by John H. Hendriksen; extant.
Great and Positiv divisions as viewed from choir stalls: Photograph by Jordan Williams. Taken on 2019-11-07