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HUGHES AND KNAPP
HUGHES AND KNAPP. Located near the SHOT TOWER, this brick manufacturer in 1867 manufactured 600,000 brick valued at $6,000. The company employed twelve workers.
1. "The Manufacturing Interest," Dubuque Daily Herald, December 15, 1867, p. 4. Online: http://news.google.com/newspapers?id=jMZCAAAAIBAJ&sjid=casMAAAAIBAJ&pg=3423,6144162&dq=shot+manufacturing+dubuque&hl=en