In 1943, during WW2, aerial photos of Sydney were taken.
Dunlop's house is not shown, the lot was vacant then.
It was at lat -33.8154, long 151.0019.
The 1943 images can be viewed using SIX viewer.
https://six.nsw.gov.au/wps/portal/!u...0c6McFQFnMU1_/