You can find documents that were presented to the House before 1951 in the ‘AtoJsOnline' database. Here you can see the past work of government departments and public organisations. Also reports of select committees and commissions of inquiry.
The AtoJsOnline database on the National Library website contains digitised volumes of the Appendices to the Journals from 1858 onwards. New volumes are added periodically as the digitisation project progresses.