Hi Descol, as I recall John M had hired the aircraft to use whilst on his honeymoon, and suffered an engine failure after takeoff at Doini. From memory it went into shallow water but I don't believe it was recovered.
John and his bride made the front page of the Post Courier. This would have been about 83 or 84 from memory. Doubt that there is any publicly available report.
I last saw John about 25 years ago when he was living in Rockhampton, not in great health. No idea where he is now.