Hi

My Patrick was tried at Limerick in 1822, he may have been married in Ireland. However, he married Johanna Elliott, the daughter of Edward Elliott, convict from Limerick, at Wollongong in 1829. The two men may have knwon each other in Limerick as they were both tried for rebellion. Patrick and Johanna had 3 children when he drowned in 1836 off the coast of Wollongong.

Unless the girl was a daughter from a marriage in Ireland - I don't think they are related. There was another Patrick Lysaght, convict.

Cheers
Joanne