2004-10-30/2019-02-11 - From the OHS PC Database, derived from A Guide to North American Organbuilders, by David H. Fox (Richmond, Va.: Organ Historical Society, 1991). - Established in 1897 by John W. Gratian in Alton, Illinois; succeeded by Gratian Organ Builders, 1922. Source: Michael Friesen.
2018-05-07/2020-04-09 - For further information, see: Gratian Organ Builders.
2018-05-07/2019-02-11 - Note from Organ Database Builders editor Charles Eberline, March 19, 2018. - The September 19, 1914, issue of The Music Trade Review carried the following notice: Alton, Ill., September 14.-The Gratian Organ Co., of this city, has been incorporated here, with capital stock of $2,500, for the purpose of engaging in the manufacture, repairing and general dealing in musical instruments. The incorporators are John W. Gratian, Warren B. Gratian and Doris R. Gratian. Source: "Gratian Organ Co. Organized,†The Music Trade Review 59, no. 12 (September 19, 1914): 29, accessed March 16, 2018, https://mtr.arcade-museum.com/MTR-1914-59-12/29/.
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