2004-10-30/2019-04-29 - Note from the OHS PC Database, derived from A Guide to North American Organbuilders, by David H. Fox (Richmond, Va.: Organ Historical Society, 1991). - With Patrick J. Murphy & Assoc. of Stowe, Pennsylvania, from Oct. 1990. Active with firm in 1991. Sources: Letter to David H. Fox.
2015-10-03/2020-04-09 - See main entry: Patrick J. Murphy & Assoc.
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