Encyclopedia Dubuque
"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.
BOSTON-RHOMBERG MINING COMPANY
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BOSTON-RHOMBERG MINING COMPANY. In January of 1878 this group of miners was digging a shaft near the DIAMOND HOUSE.
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Source:
"Going Down," Dubuque Herald, January 24, 1878, p. 4. Online: https://news.google.com/newspapers?nid=uh8FjILnQOkC&dat=18780119&printsec=frontpage&hl=en