The OHS Pipe Organ Database

Groton School
Groton, Massachusetts

St. John's Chapel

OHS Database ID 24797.

Status and Condition

The organ has been altered from the original installation as described here.
The condition of the organ is in not known or has not been reported to the Database.
We received the most recent update on this organ's state and condition November 24, 2006.
If you can assist us with information concerning the current condition of this organ, please use the form accessible through the "Update" button.

Technical Details

Three manuals. 81 stops. 72 registers. 92 ranks. 5336 pipes.


  • 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:
    Alterations and additions to 1935 Aeolian-Skinner from 1945 through 1962 including relocating console, tonal additions, alterations and revoicing; Processional organ relocated to former console position. (Database Manager. November 24, 2006)

Online Documents

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Related Database Entries

As a matter of best practice, we maintain separate entries each time an organ is modified or relocated. Click a link to go to descriptions of other phases in this instrument's life.

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Pipe organs in Massachusetts sponsored by Mssrs. Czelusniak et Dugal.


When they are available, stoplists for organs are included in the Database. To make corrections in stoplists that you see here, please send details via e-mail to rather than submitting a new stoplist through our online form.

  • Typed stoplist from Eyrline Morgan.
    Groton, Massachusetts
    Groton School
    Aeolian-Skinner Organ Co., Inc.    
    Opus 936, 1935-196
    No. manuals:  3  
    No. stops:  81  
    No. ranks:  92  
    No. pipes:  5,336    
    There were many alterations and additions by the  company from 1945 to 1962, including
    relocating the  console, tonal additions, alterations and revoicing.   The Processional 
    organ was relocated to the console's  former niche.  Here is an overview of the company's  
    work thru 1962:  
    16' Sub Principal  61  
     8' Diapason  61  
     8' Principal  61  
     8' Flute Harmonique  (replaced by ex-PO 8' Rohrflote)  
     8' Gemshorn  61  
     5 1/3' Grosse Quinte  61  
     4' Octave   61  
     4' Principal  61  
     3 1/5' Grosse Tierce  61 (replaced by 4' Flute  Couverte)  
     2 2/3' Quinte   61  
     2' Superoctave  61  
     1 3/5' Tierce   61 (replaced by ex-PO 2' Blockflote)   
    IV Full Mixture  244 (reworked as  IV Sesquialtera)   
    IV Fourniture  244   
    III Cymbel   183 (replaced by ex-PO III Scharf  reworked)  
     8' Bombarde  73 (later addition)  
    16' Flute Conique  73   
     8' Geigen   73  
     8' Gedeckt   73  
     8' Viole de Gambe  73  
     8' Viole Celeste  73  
     8' Flauto Dolce  -- (from 16' Flute Conique)  
     8' Echo Viole  73 (replaced by Flute Cel 54 GG)  
     4' Octave Geigen  73  
     4' Flute Triangulaire 73 (replaced by ex-GT 4' Flute  Oct)  
     4' Fugara   73  
     2 2/3' Nazard   61  
     2' Fifteenth  61  
     1 3/5' Tierce   61   
    VI Plein Jeu  366 (divided into III Mixture with one new rank 183 and IV Plein Jeu 244)   
    16' Bombarde  73 (replaced in kind)  
     8' Trompette I  73 (replaced in kind)  
     8' Trompette II  73 (replaced by Hautbois)  
     8' Vox Humana  61  
     4' Clarion   73 (replacedl by ex-CH 8' Tromp Harm)   
     8' Gedeckt - Processional in choir vestibule,  eliminated  
     8' Viola - Processional in choir vestibule,  eliminated  
    16' Quintaton  73  
     8' Viola   73  
     8' Orchestral Flute 73  
     8' Dulciana  73  
     8' Unda Maris  61 tc  
     4' Lieblich Flute  73 (replaced by 4' Nachthorn)  
     2' Zauberflote  61  
    16' English Horn  73  
     8' Trompette Harmonique  (replaced by ex-SW Trompette  II)  
     8' Clarinet  73  
     4' Rohrschalmei  73 (later addition)   
     8' Bombarde  GT (later addition)  
     8' Gedeckt   PRO (eliminated)  
     8' Viola   PRO (eliminated)  
     8' Rohrflote  61 (replaced by 8' Singendgedeckt)  
     4' Principal  61  
     4' Koppelflote  61  
     2 2/3' Nazard   61  
     2' Blockflote  61 (replaced by 2' Principal)  
     1 3/5' Tierce   61 (reworked)  
     1' Sifflote  61 (shifted to 1 1/3' Larigot)  
     IV Scharf   244 (replaced by IV Cymbel)  
    32' Contrebasse  12   
    16' Principal  32   
    16' Contrebasse  32   
    16' Bourdon   32   
    16' Flute Conique  SW   
    16' Quintaton  GT (later addition)   
    10 2/3' Grosse Quinte  32  
     8' Octave   32  
     8' Flute Ouverte  32  
     8' Cello   12  
     8' Gedeckt   SW  
     5 1/3' Quinte   32   
    4' Super Octave  32   
    4' Flute Harmonique 32 (harm portions of pipe cut  off)  
     4' Gedeckt   SW  
     2' Waldflote  32 (later additions)   
    III Mixture   96   
    III Fourniture  96   
    16' Bombarde  32   
    16' English Horn  CH   
     8' Trompette  32  
     4' Clairon   32    Processional   
    When Aeolian-Skinner relocated the console from a  cubbyhole alongside the choir, they 
    added shades between the former console space and the choir,  installed a recycled 2-stop chest with an 8' Gedeckt  and a 4' Octave, and installed five knobs on the  console (not 
    on combination action) which played on  the Great manual for a new Processional.  (The 
    other three knobs operated chests and pipework installed by  and belonging to the 
    Source:  Allen Kinzey
    The choir doesn't appear to have [been] unenclosed, since there is a Positiv.    Lee
    Eyrline Morgan, Organist
    Olivet Baptist Church
    Oklahoma City, OK
    [Received January 25, 2007]
  • Click Here Typed stoplist from Eyrline Morgan. Plain text; will open in a new window or tab.