"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
CARL LUBBERS. The 1934 Dubuque City Directory and 1937 Dubuque Consurvey Directory listed 1224 Iowa.
The 1939 Dubuque City Directory listed 1120 Iowa.
The 1941 Dubuque City Directory and 1942 Dubuque Classified Business Directory listed 1464 Central.
The 1945 Dubuque City Directory through 1948 Dubuque Classified Business Directory listed the address as 1460 Central.