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.
ELLWANGER BROS.
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ELLWANGER BROS. The 1870-1871 Dubuque City Directory gave the address of this business as the east side of Clay between 12th and 13th.
The 1873-74 Dubuque City Directory listed the east side of Clay 4 north of 12th.
The 1874-1875 through 1922 Dubuque City Directory listed 1256 Clay.