It was abandoned because transportation to Van Diemen's Land had ceased in 1853 and was replaced by penal servitude in the United Kingdom. Source: Internet
Worked with a lady called Lizzie Louise Wertheim who was sentenced to ten years penal servitude. Source: Internet
De Valera was court-martialled, convicted, and sentenced to death, but the sentence was immediately commuted to penal servitude for life. Source: Internet