Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.” —Marshall Cohen, CNN
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association
RYDER REALTY COMPANY
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RYDER REALTY COMPANY. John RYDER organized the Ryder Realty Company and served as vice president until January, 1925, when he retired from the firm.
The 1918 through 1977 Dubuque City Directory listed 251 Main.