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

Raised in Weikersheim, Germany; apprentice with August Laukhuff of Weikersheim, Germany, age 16; with W. E. Renkeutz of Nehren bei Tubingen, Germany, 1956; with Metzler & Sohne of Dietikon, Switzerland; with Casavant firm of Saint-Hyacinthe, Québec, Canada, 1960, head of newly formed mechanical action department; established Karl Wilhelm, Inc. of Saint-Hyacinthe, Québec, Canada, 1966; relocated firm to Mont Saint-Hilaire, Québec, Canada, 1974; active in 1985.

Staff: Christoph W. Linde; Hal Gober.