2004-10-30/2019-11-08 - 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 Henry Niemann; in father's firm of Baltimore, Maryland; succeeded his father, 1899; closed firm c. 1908; with Welte firm, assistant superintendent, c. 1925; representative of W.W. Kimball Co. of Chicago, Illinois, in Philadelphia, Pennsylvania, 1931. Patent #1,619,532; March 1, 1927; tremolo. Sources: The Diapason, March 1926, 8. The Diapason, January 1931, 40. Thomas S. Eader, "The Baltimore Builders" [third installment] The Tracker, 3:1 (Richmond, Va.: Organ Historical Society, 1958), 3. [Information taken from the text of the United States patent listed above.]
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