My father Jack, standing mid way up a very large Eucalyptus tree.  He appears to be late teens, going by other photos I have of him with dates, late 1930's.  This photo is probably a bit telling about future careers, aircrew on Liberator Squadron no. 24 in WWII, seismic line working with CSIRO through remote Australia and a career maintaining and repairing remote lighthouses with the Australian Lighthouse Service.   Come to think of it, these careers were largely away from people and likely linked to his view 'people are the problem' approach to the world.
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