You may already have this info but just in case you don't, digital copies of Herbert Henry Ward's World War I service documents are on the National Archives of Australia website www.naa.gov.au
They show his place of birth as Glen Innes. Do a name search on that website entering the surname only and selecting the category of records as WW1. You can then redefine the search results by entering Herbert Henry. There seem to be digital copies of 23 pages of his service records on that website. Hope this helps.