The National Library of Australia say this at their website:
https://trove.nla.gov.au/general/using-digitised-newspapers-faq/#using_reuse
"Can I copy the images and use them in Wikipedia, and how should I cite/credit them?
For further information about copyright, view the Australian Copyright Council website.
This information applies to articles published prior to 1954 only. Use of articles published after 1954 may be subject to copyright restrictions.
It is OK to use images from Digitised newspapers and more... on Wikipedia, other websites and in publications. The National Library (NLA) does not own copyright on the images or the original newspapers, and has digitised newspapers prior to 1954 on the understanding that they are out of copyright.
Credit your source of the images as the National Library of Australia and use the stable article identifier (e.g. http://nla.gov.au/nla.news-article57282857) as your link. The article identifier is located by clicking on the 'cite' button at the top of the left hand column, under the heading 'article identifier'. The URL should not be used as this is not stable."