"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN
CHARLES APEL. The 1874-1875 and 1875-1876 Dubuque City Directory stated that this business was located at 938 White.
The 1878-79 through 1886-1887 Dubuque City Directory gave the Central Market as the address.
The 1890-91 through 1899-1900 Dubuque City Directory listed 1343 Iowa.