2004-10-30/2019-11-14 - From the OHS PC Database, derived from A Guide to North American Organbuilders, by David H. Fox (Richmond, Va.: Organ Historical Society, 1991). — Son of Emanuel Semerad Sr.; with father's service firm of Chicago, Illinois; succeeded his father; retired, 1973. Source: No source is given in Fox's Guide, the source for his father is The Diapason March 1922, 2.
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