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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.


From Encyclopedia Dubuque
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JOHN O'NEILL. The 1868-69 through 1873-74 Dubuque City Directory located this business at 115 Main.

The 1874-1875 and 1875-1876 Dubuque City Directory gave the address as 568 Main.

The 1878-79 and 1880 Dubuque City Directory stated that this business was found at 545 Main.