2004-10-30/2019-09-28 - 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 Herman H. Holtkamp, brother of Mary and Walter B. Holtkamp Sr.; with his father's firm [Votteler-Holtkamp-Sparling] of Cleveland, Ohio, 1923. Source: The Diapason July 1923, 9.
Regrettably, it is not possible to display the information about the sponsor of this pipeorgandatabase entry or if there is a sponsor. Please see About Sponsors on Pipe Organ Database.