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.
FERRING, John P.
FERRING, John P. (Rhine, Prussia, 1841-- ). Ferring moved to Dubuque from Germany in 1856. He worked for RUMPF AND BECKER in different jobs before joining the renamed firm of RUMPF, HOSFORD & FERRING in 1881.
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Source:
1. "Biographical Sketches," The Sunday Herald, December 20, 1885, p. 14