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.
KERPER LAND & INVESTMENT COMPANY
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KERPER LAND & INVESTMENT COMPANY. The 1916-1917 White's Dubuque County Directory listed 613 A BANK AND INSURANCE BUILDING.
The 1918 Dubuque City Directory listed 426 SECURITY BUILDING.
The 1922 and 1923 Dubuque City Directory listed 428 Security Building.