"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
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JOHN G. HELBING
JOHN G. HELBING. The 1909 Dubuque City Directory through the 1916-1917 White's Dubuque County Directory stated that this company was located at 343 Grandview.
The 1918 Dubuque City Directory listed 351 Grandview.
The 1929 Dubuque City Directory listed 620 S. Grandview.