C. J. SHANNON
C. J. SHANNON. The 1899-1900 Dubuque City Directory listed 341 12th.
The 1913 Dubuque and Dubuque County Directory and the 1915 Dubuque City Directory stated that this business was located at 1214 Iowa.
The 1916-1917 White's Dubuque County Directory listed 1048 Main as the address.