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.
CHARLES HOLTZ
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CHARLES HOLTZ. The 1868-69 Dubuque City Directory listed the west side of Main between 8th and 9th.
The 1875-1876 Dubuque City Directory gave the address as 843 Main.
The 1880 through 1884-1885 Dubuque City Directory gave 779 Main as the address.