Updated through online information from James R. Stettner. -- The work done by James P. Bartholomay of Dorchester, MA. In 1970 seems to have been a tonal change to the Swell. There is a tenor C 2' Flute that likely took the place of another 8' string rank or perhaps a tenor C 8' reed.
Altered by Bartholomay c. 1920, 2-12. Waltham Church Organ Co. Op. 12 according to Cameron.
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