So hang on a minute, who's related to who?
As you can (hopefully) see from this family tree, Jestyn is (through the marriage of her brother) distantly related to the Beaumont children. "A LINK!!" I hear you cry, connecting two of Australia's most profound mysteries. Well, if certain commenters are to be believed there certainly is.
Was the Somerton Man Robin's biological father? Many people seem to think so.
You can also see that Derek Abbott (yes, THAT Derek Abbott), has now married into the case and could well call the Somerton Man his grandfather.