Hello Cara
Appologies if I have missed something.Certainly not my intention.
I assume you are saying that Thomas Hendy who married 1853 Baltinglass,Margaret Maria Long and came to Australia 1855 on "Constance",was a son of William Hendy and had siblings Alice bC1824 who married Robert Taylor 1847 Ballynure,Wicklow,William

and Mary Anne

I was not aware of these siblings who must have remained in Ireland.
Thomas and Margaret had an infant Alice with them when they arrived Australia but she died C1856.
I am guessing that Alice might have been named after the sister of Thomas.
The posting from the IGI regarding a Louisa Anne Hendy marrying Nicholas Wilson is speculative as I can't yet make that connection.
I am concerned when you say I had not answered you on your list.
What did I miss? Which other list?
Regards
Rex