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

Apprentice with Rieger Organs; with Schlicker Organ Co. of Buffalo, New York; with Lawrence Phelps of Erie, Pennsylvania; with Berghaus Organ Co. of Bellwood, Illinois; established firm in Duluth, Minnesota, c. 1978; active in 1989.

Staff: Jesse Eschbach; Hal Gober; Frank Mehle; Peter Pestalozzi; Warren Post; David Rollin; John Thoennes.

Sources:

• Diapason, June 1986, 14.
• Music,* (American Guild of organists, December 1975), 24.
• Elizabeth Towne Schmitt. 

*Music was the former name of the journal of the AGO, the name was changed to The American Organist starting with the January 1979 issue.