"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
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
ANTON ZWACK INC.
ANTON ZWACK INC. Anton Zwack Inc., a general contractor, was established in Dubuque in 1893.
The 1909 through 1968 Dubuque City Directory gave 1301 Central.
The 1970 through 1985 Dubuque City Directory listed 1330 White St.
"Chronology '72, Telegraph Herald