Encyclopedia Dubuque
"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.
JOHN ERNSDORFF AND SONS
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Jacob Michel's home at 535 West 5th Street. c. 1880. Photo courtesy: Center for Dubuque History]]
JOHN ERNSDORFF AND SONS COMPANY. The 1890-91 Dubuque City Directory listed 297 Iowa.
The 1899-1900 Dubuque City Directory listed the southwest corner of Main and Jones.