Alton, Illinois, c. 1922; Bunker Hill, Illinois, 1938; Decatur, Illinois, unknown date-1980.
Established by Warren B. Gratian in Alton, Illinois, c. 1922, as successor to Gratian Organ Co; relocated c. 1938 to Bunker Hill, Illinois; relocated to Decatur, Illinois; factory at Kenney, Illinois; assets sold to Schneider Workshop and Services, 1980.
Staff: John W. Goulding; Elwood Gratian; John W. Gratian; Warren Burke Gratian; Richard Schneider.
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