The instrument was built by M. P. Moller of Hagerstown, Maryland, beginning in 1969 (a year after worship began in the present building) and concluding in 1972. Its construction was underwritten by the generosity of Cora and David Crock, and it has served the congregation and the community well in Sunday worship, in festival musical offerings, and in many recitals and concerts throughout the years.
In 1994, a complete renovation and substantial expansion of the Moller instrument was undertaken by Robert Sipe. At the same time, provisions were made for controlling humidity in the sanctuary in order to help the organ maintain its tuning and reduce the risk of mechanical failures.
The renovated organ is one of the three or four largest pipe organs in the city of Appleton, comprising three manuals, 46 stops, and 58 ranks. It is beautifully integrated into the sanctuary both visually and acoustically, and provides a powerful and cherished center for worship music, a venue for recitals and concerts, and an instrument for the teaching of organ. See the organ page on this site for more information on the instrument and its history, as well as photographs.