Jeff Hawke created in 1955 by Sydney Jordan ( for the drawings) and for the scenario by Willie Patterson. Sydney,in several interviews quote often as source of inspiration Garth by Stephen Philip Dowling.
It is true that we found the adventurer side of Garth in some adventures where the aliens are implicated,but personally I had never made the reconciliation. To my discharge, I have read little adventures of Jeff Hawke, so I let you juge and make your own conclusion
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