CALLAGHAN Winifred Mary Minnie; Sydney, b Dublin ? 1836, by 1850 ex workhouse Famine Orphan.

I’m seeking information about Winifred CALLAGHAN. She arrived in Sydney Australia in June 1850 as a Famine Orphan, on the ship Maria, and was listed as from Dublin, aged 14. (Therefore born 1836.)
Her parents were listed as Mary and William Callaghan, deceased.

She married Richard Plummer BURGESS in Sydney Australia in 1852. A Master Mariner, he drowned inNew Zealand in Dec 1863.
A son, either William Henry Burgess, OR Thomas Alfred Burgess went “back” to Ireland, married and died childless. (His widow was still alive in the 1930s, but her details have been lost.)

Thank you! For any help or suggestions in adding to my family history

Migs (Margaret) Eder
New Zealand
Migseder@paradise.net.nz