231 George Street 2010
Commercial building Heritage and Conservation Register
The Story of Old George Street A Chapter in Old George Street by Charles H. Bertie
George St North Commercial Heritage Precinct
George St North Metcalfe Heritage Precinct
George Street North Heritage Walk www.VisitSydneyAustralia.com
George Street South Heritage Walk www.VisitSydneyAustralia.com
George Street Quarry www.VisitSydneyAustralia.com
George Street Wikipedia.org
NSW Office of Environment & Heritage
Dictionary of Sydney
State Library of NSW