General Dubuque History:
http://www.encyclopediadubuque.org/index.php?title=Welcome
Dubuque Telegraph-Herald/TH Archives through Carnegie Stout Public Library:
On campus access to TH archives or
http://cityofdubuque.advantage-preservation.com/
Dubuque Telegraph-Herald/TH Archives – Google:
https://news.google.com/newspapers?nid=aEyKTaVlRPYC&dat=19240808&b_mode=2&hl=en
Other Dubuque Newspapers through the Chronicling America project: https://chroniclingamerica.loc.gov/lccn/sn84027131/
Dubuque Carnegie Stout Public Library resources - materials available at the library or free online, including Dubuque newspapers, maps, city directories, etc.: http://www.dubuque.lib.ia.us/84/Genealogy-Local-History
Dubuque County Historical Society: https://www.rivermuseum.com/about-us/dchs-history/
Dubuque County Vital Records: https://dubuquecounty.org/recorder/vital-records/
Center for Dubuque History (Loras): https://digitalcollections.loras.edu/
National Mississippi River Museum Archives: http://www.rivermuseum.com/collections/historical/archives-and-bowell-library/