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Naturally, there is no marriage record for her. The most recent marriage records that Queensland has released to the public were from 1941 (i.e. 75 years after the event). That is in compliance with the state privacy laws. There is no public listing for her under her maiden name.
I did find a private record in ancestry.com for an Alan Stanger. I have requested the owner to contact me. If she does I will post back here. However, if she doesn't, then there is no way to find Anne Helen. She isn't listed anywhere under her maiden name.
I'm just sorry there isn't information about her. Without a married name there's just no way to do it. I still haven't heard from the Stangler family I mentioned. I'll post here if I do.