@Ronald
Yeah, I notice some inconsistencies and/or repetition over the ages with names.
Your point about vessel configuration a various times was central to my thinking currently.
Would it really be feasible, financially viable or even possible to transport a human cargo from Dublin to Hobart on a single masted ship?
Fortunately, I have a wealth of official records in public archives, including Captain's and Ship's Surgeons logs of this particular journey to go through and hopefully glean more information about the vessel itself.
Yup, victims of the Irish Potato Famine I'm afraid.
In my family's case, exactly what, when and how it all transpired is surely, as you say, lost to history and any attempt to apportion blame or make excuses is futile.
But there are, thanks to the pedantic British (g'day your Maj..) establishment, lots and lots of snippets to follow.
"An evil man will burn his own nation to the ground to rule over the ashes". SunTzu. - Cheers.