Looking for Information on Gault and Boyles from Northern Ireland

Hi I am looking for any information a robert gault born taylorstown antrim his father was william gault who married nancy mcdowell in ireland. Robert married elza jane cunningham and went with four children from ireland to wetern australia.
Looking information on a george, william and edward boyle all possibley born in ireland and ? their father was abraham. They all came to autralia two on the ship strathallan in about 1862.

Also looking for information on henry gault born 1833, went to america with his parents siblings in 1839, then went back to ireland and was sentence and tranported to australia in 1853. He left australia and married in a america to hester Mc Clure in 1855.