I reckon its a good chance Motomaniac will have some pics.
i remember one pic that was centre feature in an old trail and track mag of an A grade Race late 70's in Victoria with Jack on the Maico pulling a wheelie of the start line. others possibly in that pic were Cramer, Landman, Reynolds, Dinsdale etc.
Hoony ya know what.I got nothing on Jack .As a kid I used to see him and Bernie Ryan practicing at the old Grantville farm with my Dad.I used to stop riding when Jack went out just to watch him.I was in awe, never thought about taken pics.My Dad used to like him because he was always smiling.We were watching him once when he got into a bit of a swapper around the back( sometimes we'd walk the track to see how he took every section),I was worried that he was going to crash but he was laughing (openface helmet) and my Dad remarked that this guy is having a ball out there.
My Dad always reminded me about that.Still does.
I'm sure that I got a few T&T mags from the era with Jack.
Paul or Keith Stacker are more likely to have something on him after their long association with him on the Maico's.