Locating Original Newspapers in Special Collections:
To find original newspapers in Special Collections, limit your search to the location "Special Collections" in Roger (advanced search page). E.g., Try "newspapers and california" as search terms (substituting the state or locale of interest to you). Notice, you will find reference works ABOUT newspapers as well as the actual newspapers. Don't discount these reference sources outright, they may provide useful context for your research, or alert you to the existence of useful newspapers beyond UCSD.
If these don't work for you, Ask A Librarian for help!
Selected Historical Newspaper Databases: