Older Lagos newspapers, late 19th century - early 20th century -
Lagos Observer, Lagos Standard, Lagos Weekly Record, Nigerian Chronicle, Nigerian Pioneer, Times of Nigeria
A Nigerian project to digitize Nigerian newspapers. Coverage begins from January 1, 1960. Search by keyword. https://archivi.ng/
Center for Research Libraries
University membership required. Large collection of older African newspapers mainly on microfilm. A few issues are online.
Select Browse Catalog (top right)
Put in the name of a country to find that country's newspapers, or put in the title of a newspaper.
Stanford users can borrow Center for Research Libraries material on Interlibrary Loan. https://www.crl.edu/