Looking for LT A.J. Livmanis, flew choppers in Vietnam (1970 -71)

I am trying to find a mate of the 60’s his name is Lt A.J.Livmanis MID he flew choppers in Vietnam (9/9/1970 to 16/6/1971) can you help me. 

    John Byrne. johnbyrne8@bigpond.com President HMAS Sydney Association.