Elizabet Sullivan had, in addition to two former convict parents, a former convict stepmother Bridget Sullivan, [Australasia] Bridget was also an Irish convict.  It is unclear what happened to Elizabeth after she left the orphanage until 1877 when she married Thomas Mizen[1] [spelled with 2 z’s on the record] of Bagdad.  They were neighbours of John Sattler, Bagdad.

Elizabeth has two children registered, there seem to be three children.  Elizabeth disappears from view after Georgina was born [not registered, acknowledged as Thomas Mizen's daughter]

Eldest daughter Agnes Jane born 19 Jun 1877 was registered in Hobart by Elizabeth's father, John Sullivan of Fitzroy Place [now Sandy Bay]  Agnes married Harold Blake of Bagdad.  There were  3 children registered.  Agnes died August 25, 1917 Hobart Hospital.

Second child Charles James Mizen was a railway track worker.  He married Mary Fielding,  there were eight children registered.  He died 1951 

Probable third child Georgina Frances Thorn [born Mizen] 1881-1932 married Joseph A Thorne, she died at New Norfolk.

This relationship Of Elizabeth Mizen to John Sullivan is proved by DNA to other John Sullivan descendants. 

[1]Thomas Died  29 Oct 1922 buried  Church of England Cemetery Bagdad 30th