2004-10-30/2019-04-29 - From the OHS PC Database, derived from A Guide to North American Organbuilders by David H. Fox (Organ Historical Society, 1997) - Son of Leonard G. Berghaus; with Berghaus Organ Co. of Bellwood, Illinois, by 1989; active 1991. Sources: Leonard Berghaus. Michael Friesen.
2015-11-15/2019-02-11 - From Organ Database Builders editor Stephen Hall, September 6, 2018. - Todd Berhaus left the organbuilding profession in 1998. Source: Email from Jean O'Brian, vice-president of Berghaus Pipe Organ Builder.
2018-12-18/2018-12-18 - See main entry at Berhaus Organ Co.
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