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.
RIDGE MOTOR AND MACHINE COMPANY
RIDGE MOTOR AND MACHINE COMPANY. Established in 1933, Ridge Motor & Machine Company was located at 422 Main in 1937 and 1941.
The 1948 Dubuque Classified Business Directory listed 465-471 Iowa.
In the 1951 through 1959 Dubuque City Directory it was listed at 465 Iowa and at 1160 E. 12th in 1980.
The 1962 Dubuque City Directory listed 465-71 Iowa.
The 1966 Dubuque City Directory listed 465 Iowa.
The 1968 Dubuque City Directory listed 150 John F. Kennedy Road.
The 1970 through 1980 Dubuque City Directory listed 1160 E. 12th.