Try to find the spot where the photographer was standing.
Going by the building behind on the left, GoogleMapsStreetview - goo.gl/maps/Afda285BcqWEApDA9
Excellent attention to PPE, even without gloves you couldn't easily touch you face anyway.
@ [https://www.flickr.com/photos/state-records-nsw/] Here's something! Sitting at the beach today reading the July/August 2020 NRMA 'Open Road' (because I was trying to avoid talking to a boring stranger) and there is this photo in the letters section on page 11. A Peter Kirkton writes to say he has a copy with handwritten reverse with the names of these characters -
" ... The reason I have this picture is that the central figure in front is my aunt, the Australian novelist Christina Stead. But I don't know how to apply the names on the back. ...
... the Riley Street Depot was on the corner of Riley and Collins Street in what is currently a school and was such back then. During 1919, Christina was 17 years old and in her final year of schooling, apparently excelling in English with a special interest in poetry and prose. ... ... "
Wiki - en.wikipedia.org/wiki/Christina_Stead
Might already be common knowledge at NSW State Archives.
ps The NRMA 'Open Road' edition is online. Here is the relevant page - openroadnorthshore.partica.online/open-road-north-shore/o...
Ping @ https://www.flickr.com/photos/pellethepoet
https://www.flickr.com/photos/32162360@N00/ That NRMA story was also picked up by the Sydney Girls High School newsletter in August -