Peter,
i was reading a book today and came across mary lynchey and thomas her son age 14 yrs,
for stealing the sum of £27 ? they were convicted for 14 years to australiar , mary as you know had three children with her, but you know also thomas sailed on another boat, thomas was said to be a balled singer, 19 children died on the boat and thomas survived later sailed to tasmania,july 1835 there was nothing to be found of thomas lynchey late after his arrival except he laboured in a chain gang with patrick kneale,
patrick kneale as far i as i could see would have been also a convict as he is in this book as well , dont know if you have this info but thought id tell you any way,