"Caergwrle, Allynbrook". Discover people and places. State Library of New South Wales. 2011. Archived from the original on 2 May 2012. Retrieved 13 May 2012.
web.archive.org
"Caergwrle, Allynbrook". Discover people and places. State Library of New South Wales. 2011. Archived from the original on 2 May 2012. Retrieved 13 May 2012.