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Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
ADOLPH SCHWARTZ. The 1884-1885 Dubuque City Directory gave 857 Main as the company address.
The 1890-91 Dubuque City Directory listed 779 Main.
The 1909 through 1915 Dubuque City Directory stated that this company was located at 71 Julien Avenue.