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.
LOUIS DITTMER
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LOUIS DITTMER. The 1934 Dubuque City Directory listed 30 W. 4th.
The 1948 Dubuque Classified Business Directory and 1957 Dubuque City Directory listed 414 Central.