In 1963, the Delaware Organ Company of Tonawanda, NY made several changes to the organ at a cost of $4,272. These changes were described in the contract as:

Great Organ:

1. The 4' Octave will be increased in scale by the addition of several pipes at the bottom of the rank. This will produce a more full and assertive quality and will help to brighten the Great organ.
2. A new Mixture increased to IV ranks and designed for necessary fullness and brilliance will be installed in place of the present III rank Mixture which is not a true Mixture stop.
3. A new 2' Super Octave which is an important members of the Great Diapason chorus will replace the present 4' Harmonic Flute which is of limited usefulness.

Swell Organ:

1. The present 8' Diapason adds very little to the Swell organ which lacks any independent 4' and higher pitched stops. This rank will be replaced by a new 4' Principal which has Diapason quality. This will add fullness and brightness to the Swell organ.
2. The 8' Vox Humana is usable for only a short time after each tuning. A new III rank Mixture designed to bring the Swell organ into better balance with the Great organ will be installed in place of the Vox Humana.
3. The 8' Aeoline is very close to the Choir Dulciana in tone quality. Since there is no independent 4' Flute in the Swell organ a new 4' Rohr Flute will be added in place of the Aeoline.

Pedal Organ:

1. The 16' Open Diapason and the windchests upon which the pipes are mounted will be removed. The 8' Diapason from the Swell organ will be rescaled, mounted on a new windchest, and installed to provide independent Diapason tone for the Pedal. This rank will be playable at 8', 4', and 2' pitches.
2. A new III Mixture will be added to bring the Pedal organ into better balance with the Great and Swell organs.

Chime Action:
A new electric action will replace the present pneumatic chime action. This action can be easily regulated to provide equal volume for each chime. The new action will be complete with a relay.

This instrument was a full rebuild of the previous 1931 Möller organ (Opus 5932) that had been partially destroyed in a fire.

According to internal correspondence from the Estey Company (fortuitously rescued from the Brattleboro VT town dump, and now archived at the University of Vermont at Burlington), this was Estey's first rebuild and they lost a considerable sum of money on the project through misjudging the labor and materials required for the job. Their local representative, Mr. E.G. Marin of Buffalo, complained at great length to the Estey Company concerning the damaged items they had neglected to repair or replace, while Estey countered by arguing that those repairs were not spelled out in the contract. In addition, Mr. Marin was caught in the middle between the church and Estey in a lengthy dispute concerning who was responsible for paying for the new wooden screens hiding the chambers.

It's difficult to determine the final cost of this project, but I believe the church paid around $7,000. The completed instrument contained 26 ranks and 31 stops; the Swell division pipework and chests were entirely new as they had been destroyed in the fire, as was some pipework in the Great and Pedal.

Identified by James R. Stettner through information from the Estey Opus List, published in The Boston Organ Club newsletter, 1973-1979.