Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
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Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
DUBUQUE SPIRAL HARROW COMPANY
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DUBUQUE SPIRAL HARROW COMPANY. The 1918 Dubuque and East Dubuque City Directory listed 426 SECURITY BUILDING.