I think it was Edgar Pennzig that had a column in AMCN those so many years ago where he talked about Aust. convict history, I have a recording of him giving a lecture on convicts and other matters to my old MC Club about 1975. Edgar moved from Sydney to Oatlands Tasmania soon after this lecture and has now passed away. By coincidence my grandparents lived in Oatlands Tas but many years before.
"Young" Les F