Try to find the spot where the photographer was standing.
Monday 1 March 1880, to be more precise! See SMH 2/3/1880 p.7 - trove.nla.gov.au/ndp/del/article/13449255 - it should be possible to identify some of the VIPs present ...
See also AT&CJ 6/3/1880, p.24 (illustrated) - trove.nla.gov.au/ndp/del/article/70941629
See ongoing people id work on the finished lighthouse in 1883 ...
Ha! ...another 'who's who' day at the Macquarie Lighthouse. Love the T&CJ action shot of Sir Henry laying the foundation stone...brilliant!
Quite a lot of detail visible if you zoom in at the purl...reminds me of this ANMM Poul C. Poulsen pic of the Queensland Treasury building under construction...tools lying around on the masonry, etc www.flickr.com/photos/anmm_thecommons/7258514918/