2004-10-30/2019-10-28 - From the OHS PC Database, derived from A Guide to North American Organbuilders by David H. Fox (Organ Historical Society, 1991) — With A. R. Schopp's Sons firm of Alliance, Ohio, 1982. Source: American Institute of Organbuilders (AIO): 1982 membership directory. David L. Junchen, Encyclopedia of the American Theatre Organ, vol. 2 (Pasadena: Showcase Publications, 1989), 900.
2015-08-26/2019-10-28 - From the OHS Database Builders Listing Editor, April 8, 2016 — Listed as general manager of A. R. Schopp's Sons. Source: A. R. Schopp's Sons, Inc. company website, accessed April 17, 2016, http://www.arschopp.com/.
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