From the OHS PC Database, derived from A Guide to North American Organbuilders, by David H. Fox (Richmond, Va.: Organ Historical Society, 1991). -

Established by Johann G. Pfeffer in St. Louis, Missouri, 1882; firm acquired by Alfred G. Kilgen Sr., 1909, and continued until 1919.

Staff: Albert Brouk; John R. Heimuller; John Horlacher; John J. Mourfee; Anthony Pfeffer; Eugene A. Pfeffer; George J. Pfeffer; Robert Pfeffer; Gustav F. Treu.

Sources:

• Orpha Ochse, The History of the Organ in the United States (Bloomington: Indiana University Press, 1975),
  2. Organ Handbook (Organ Historical Society, 1986), 19.
  
  
  3. Piano and Organ Purchaser's Guide, Purchaser's Guide to the Music Industries, (published by Music Trades, New York)
  
  

For further information, see also: Geo. Kilgen & Son, Inc.