Can anyone help me find any information on Francis Quinn

Question

I am struggling to trace Francis nee Quinn Mills where she exactly came from before she came to Australia

Comments

Where does the place of birth come from?  The profile says born in 1850, but one source says about 1845.  How sure is the 1850?
I haven't looked yet, but does her death registration name parents?

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The date and place of birth was taken New South Wales, Australia, Unassisted Immigrant Passenger Lists, 1826-1922
14 Dec 1867 Sydney, New South Wales. So not sure if it is 1950 exactly. I haven't been able to find her death registration at the moment.

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I added the death registration (Queensland is easy to search), and a Research Note (which I forgot to sign - although I did state it in my edit note).  Death reg names parents, which I added to the Research Note as that information is only as good as the knowledge of the informant.

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Thank you. I have just rejoined Ancestry and a family member who's mother has done a lot of research into the family actually has Francis as coming from Waterford Ireland, which makes sense as we had been told that there was a connection with Ned Kelly