Margaret Hannan age 16 to Australia 1850

I am looking for any information about the parents of Margaret Hannan/Hannon who came to Port Phillip, Victoria on the Eliza Caroline in 1850. She emigrated under Earl Grey's Pauper Migration scheme which dealt mainly with teenage girls from destitute circumstances, often orphaned.Subsequentbirth recordsabout her children said she was born in Co Wicklow but her immigration information says she was from Hacketstown, Co Carlow and aged 16.

Subsequent newspaper items indicate that her mother remarried somebody White/Whyte and had 2 more boys, so her father presumably died young. Her mother was stated on her 1853 Melbourne marriage documents to be Elizaand father Matthew Hannon, a farmer. She also gave her age thenas 21 but that may have been a ruse to allow her to marry without parental permission.

There is no indication that she had any other living siblings when she left Ireland.

Any suggestions would be appreciated,

Ric