Updated through online information from T. Daniel Hancock.

Identified through online information from T. Daniel Hancock. -- "In 1921 the church engaged the Seeburg-Smith Co. of Chicago to modify the mechanics of the organ to employ electrical switching. Justus Percival Seeburg was a Swedish-born piano maker and Frederick W. Smith was an English-born organ builder who apprenticed with Robert Hope-Jones. . . . They removed all of Sanborn's console controls and whatever actuaing system interfaced with the windchest mechanics. In their place, they installed a cumbersome electrical switching system and electro-pneumatic action for the chest mechanics. They also installed a new detached console that is not extant (2010). Their work shows a fair degree of competency and care, although the design of their mechanical systems lacked responsiveness, reliability, and sensitivity." From "The Diapason," see bibliography below. Also, a Harp was added at this time.