"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
DUBUQUE TYPEWRITER EXCHANGE
DUBUQUE TYPEWRITER EXCHANGE. The 1929 Dubuque City Directory listed 695 1/2 Main.
The 1937 Dubuque Consurvey Directory listed 599 1/2 Main.
The 1939 Dubuque City Directory listed 670 Central.