The five sites listed below are all safe to use for non-attribution images. These sites also offer a choice in the size of the image to download. There are many other sites available; however, you must provide appropriate credit for images. If you cannot find the owner of the image, please do not use the images. Please be aware that gallery site images are not free sites for images.
Australian Historic Newspapers (Trove)
Australian newspaper archives 1803 - 2007
British Newspaper Archive (British Library)
UK newspaper archives from 1710-1959
Provides releases, transcripts, media interviews and additional related statements by government, opposition, and other parties, as well as industry reactions.
Historic American Newspapers (Library of Congress)
US newspapers 1836-1922 + directory
Search across archival newspaper sites
African American newspapers, 1827-1988
Chronicles African American experience.
British library newspapers (19th century)
Newspaper archive. 1 concurrent user
Waterloo directory of English newspapers and periodicals 1800-1900
UK newspaper & periodical index