Re your querie John Challis and Matilda Challis. I have the family history of Matilda Challis, dating back to the early 1700's for most family lines an additional 5 generations in some cases. I have copies of the original documents of the Challis family who arrived in Tasmania on 19/8/1862 from Suffolk, England as bounty immigrants sponsored by the Rev Henry Dowling. I also have some details of the parents of John Cowley, convict William Cowley and mother also a convict Ann Daley. Too much to include here. John Cowley's sister Charlotte and Matilda Challis' brother William are my wife's GG grandparents.