"Organ built by James E. Treat & Co., in 1889, financed by E. F. Searles, and from 1890 until 1904, the exhibition organ of James E. Treat & Co. and the Methuen Organ Co., in their building next to the present Music Hall. In 1904, Mr. Searles gave the organ and edifice to the congregation. Electrified by E. M. Skinner in 1948 (utilizing an ugly Aeolian console), the organ lost several fine stops and the action became so unreliable that it was "retrackerized" by the Andover Organ Company in 1962. The original console was rebuilt, the Pedal and stop action is electric, and tonal changes were accomplished with the funds available.

"A recital booklet for December and January 1890 indicates that the case was designed in pure Corinthian by Henry Vaughan, the console was six feet detached, and that the "pneumatic motor" was applied to the lowest octave of the Swell. The pedals were flat, the couplers were over the Swell manual with the combination pedal labels, and the swell pedal and Tremolo pedal were at the far right." (Boston Organ Club Newsletter, May 1966)