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.
R. KOHAUS
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R. KOHAUS. The 1880 Dubuque City Directory stated that this business, music company, was to be found at 820 Main. In 1883 the same address was being used although the business was listed as "piano tuner."