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.
ISIDORE P. ZIMMER
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ISIDORE P. ZIMMER. The 1937 and 1941 Dubuque City Directory listed 35 W. 7th.
The 1942 through 1945 Dubuque City Directory listed 226 W. 7th.
The 1957 through 1966 Dubuque City Directory listed 1006 Central.