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CADILLAC CO. OF DUBUQUE
CADILLAC CO. OF DUBUQUE. The 1916-1917 White's Dubuque County Directory and the 1918 Dubuque and East Dubuque City Directory listed 850 Iowa as the address.
The 1922 telephone directory listed 1084 Iowa.
The 1923 Dubuque City Directory listed 1090 Iowa.