Visit your local library. Many libraries maintain archives of local newspapers, usually on microfilm. The librarian can show you how to access these materials and search by a particular date.
Ask your librarian about borrowing microfilm from other libraries through interlibrary loan. This is an ideal option if your own library does not have extensive resources.
Call the office of the newspaper you wish to search. Many newspapers keep archives of their back issues and have a librarian or research assistant to help you. You may also contact the local historical society. Even if they do not keep 50-year-old newspaper archives, they may be able to give you advice on finding them.
Log on to the Online Computer Library Center (OCLC) sponsored by the United States Newspaper Program. There, you can search a vast network of newspaper collections. You can access this database for free at thousands of libraries.
Go to the website of the Library of Congress. Select the "Newspaper & Current Periodical Reading Room." Then select from a list of databases you can search. Some searches may be not be available for free.