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Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
M. M. HOFFMANN
MATHIAS M. HOFFMANN. The 1884-1885 through 1890-91 Dubuque City Directory, gave the northwest corner of Clay and 15th as the address.
The 1899-1900 through the 1929 Dubuque City Directory listed 1497 Clay as the address. In 1922 the business was listed in the Dubuque Telephone Directory as M. M. Hoffmann & Son.