Fitzgerald's of Ireland and England

[Robynkc]

Hello, am trying to find records for my G.G.G.grandfather Richard Fitzgerald B. abt 1799 who married Catherine Hayes B. abt 1800 in Ireland/England. Catherine's parents were Michael Hayes and Catherine Walsh, as per Death Records in Australia. I cannot find any Birth or Marriages for these families. Think these people were born in Ireland and moved to Middlesex, England, then migrated to Australia around 1850's. Richard and Catherine Fitzgerald had a son Richard Fitzgerald B. abt 1830. I have Richard and Catherine's Death dates in Australia.
Any help would be appreciated. Cheers Robyn

[chempat]

Did the son Richard Fitzgerald, born about 1830, arrive in Australia with his parents in the 1850's?

[chempat]

There is a tree on Ancestry with Richard born 1832 in Tipperary.

It also gives them a son Garrat born 1830 in St George East, Middlesex.

Garrat is showing on 1851 with his parents, (but no Richard 1832).  There is also a Garret Fitzgerald with similar birth year in London.

[KGarrad]

Richard & Catherine both born in Ireland, according to 1851 census:
https://familysearch.org/ark:/61903/1:1:SGNN-K4X

1841 census:
https://familysearch.org/ark:/61903/1:1:MQK9-DVJ