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Encyclopedia Dubuque


"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN

Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.


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HENRY KOCH. The 1856-1857 through 1873-1874 Dubuque City Directory, gave the address of this business as the southwest corner of Clay and 11th.

The 1874-1875 Dubuque City Directory stated that this business was located at 1095 Clay.

The 1878-79 Dubuque City Directory listed the southwest corner of Iowa and 11th.