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Encyclopedia Dubuque

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"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
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Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.




L. L. CORYELL OIL COMPANY

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L. L. CORYELL OIL COMPANY. The 1934 through 1939 Dubuque City Directory listed 698 Iowa.

The 1941 Dubuque City Directory and 1942 Dubuque Classified Business Directorylisted 698 Iowa and 1005 Rockdale Ave..