https://cdnc.ucr.edu/cgi-bin/cdnc
The California Digital Newspaper Collection is a project of the Center for Bibliographical Studies and Research (CBSR) at the University of California, Riverside.
https://idnc.library.illinois.edu
Illinois Digital Newspaper Collections.
https://www.marxists.org/history/usa/pubs/ohio-socialist/
Official Organ of the Socialist Party of Ohio and Kentucky. Published in Cleveland.
Over 350 libraries, museums, archives, and other cultural institutions make their collections available in the repository.