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Union Sunday School
Clermont, Iowa

1896 W.W. Kimball & Co.

This instrument is the largest remaining unaltered tubular-pneumatic organ built by W.W. Kimball. A restoration was undertaken in 1979-80 by the Hendrickson Organ Co. of St. Peter, Minnesota, with Barry Lund and Kenneth Acrea performing most of the work. Major aspects of the restoration include complete releathering and the revision of the wind system to properly accommodate the electric blower added in 1910. Complete details can be found in an article written by Acrea for the Fall 1981 issue of The Tracker.

The original Kimball windchest design employed valves that were riveted to their pneumatic motors, which made proper seating difficult. In the restoration, the rivets were replaced with screws to permit the valves to seat more securely. Unfortunately, these screws were unplated and have rusted, and have now become as rigidly attached to the motors as the rivets whose faults they were to eliminate.

Our restorative repairs include the replacement of the unplated screws with plated ones, the rebushing of the manual and pedal keyboards, a thorough cleaning, and the repair of damage to pipework from cone tuning.

16 Dble. Std. Diapason
8 Open Diapason 1-12 in façade
8 Gamba
8 Dulciana
8 Melodia
4 Octave
2-2/3 Twelfth
2 Fifteenth
3 rks.
8 Trumpet
Swell to Great
Sw. to Gr. Octaves
SWELL (enclosed)
16 Bourdon Bass
16 Bourdon Treble
8 Open Diapason
8 Std. Diapason
8 Salicional
8 Aeoline
4 Violina
4 Flute Harmonique
2 Flautino
3 rks. Dolce Cornet
8 Oboe & Bassoon
Tremolo to Swell
16 Dble. Op. Diap.
16 Bourdon
8 Flute
Great to Pedal
Swell to Pedal
Bellows Signal
Three compositions pedals
for Great and for Swell


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Dobson Pipe Organ Builders, Ltd.
200 North Illinois Street • Post Office Box 25
Lake City, Iowa 51449 USA
+1 712 464 8065

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