Fire was the night of 30 May 1928. A search on Trove reveals that it was news all around Australia from the Cairns Post to the Sunday Times in Perth which included it in its 'World's News in Brief' section (they were only a few years away from voting in favour of seceding from the Australian Federation).
Detailed account is in the Melbourne Age. http://goo.gl/k0CCTC
Some of the gaps in the Club's history are a result of this fire.
Thanks again, RogersResults.
Wanted to 'like' your post for its informative nature but it actually makes me sad to think that part of our history is now irretrievable as a result of this conflagration.