"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
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Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
C. KALTENBACH. The 1861 Dubuque City Directory listed 88 Main.
The 1870-1871 Dubuque City Directory, gave the address of this business as the southwest corner of 8th and Main.
The 1875-1876 Dubuque City Directory gave 453 Main as the company address.
The 1878-79 Dubuque City Directory listed 487 Main.