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, 1991). Edited February 5, 2017, (Hall). - William N. Elbert was with the Roosevelt Organ Works [Hilborne Roosevelt Organs] of New York. He was the manager of their branch shop in Philadelphia, Pennsylvania. Patent: with Frank Roosevelt: Patent #449,590; 31 Mar. 1891; mechanical action. Sources: Local directories of the period. David H. Fox.
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