Looking Coleman Ross from Whitegate and Cloyne Ireland

I looking for Coleman Ross,understand that he married Mary Walsh around the 1820-30, I have been told that he came from Campbeltown Mull of Kintrye Scotland around the 1800.they lived around Cloyne and Whitegate Ireland.
I know that 5 boys(Patrick 1830, John 1832, Alexander 1833, Michael 1835, Clement 1838)and 1 girl (Mary 1835)all came to New Zealand,I have records of them in NZ.
What I trying to find out:
Did Coleman Ross come from Campbeltown? who were his parents? brother/sisters
Was his wife Mary Walsh from where?
Were there other children? did they stay in Ireland? if not where?
Where are they buried

Thank Brian Ross