I can't find much on Clive Canning but of course like many of these unsung genuine adventure flyers they did their trips for personal achievment not false glory.
Australian Jon Johanson is worth a mention.He has achieved what no other homebuilder has. He flew around the world, not once, but three times in 1995, 1996, and 2000 in an RV4
In 2003 he made the first solo flight in a single-engine home-built aircraft over the South Pole. However after landing at the McMurdo Scott station he became stranded when the base, not wishing to encourage future private flights, refused to sell him fuel.After a fuel donation by Polly Vacher , he was able to fly on to Australia, via New Zealand.
Stranded adventurer offered three flights home - www.smh.com.au