The complete military record of Henry Lee-Thomas can be viewed at the Australia National Archive website:
http://www.naa.gov.au/. Here are the steps:
naa.gov.au > name search > record search > basic search > Henry Lee Thomas > from 1913 - 1918 > view digital copy. I just did this a few minutes ago and there are 114 pages. It seems that there are many duplicates. I did not go through all of the pages, but will when there is more time.
The Australia relative (M. Field) from my previous post reminded me of this. Thanks!!