Colleen,
My question was how do you know Daniel/ Denis actually came from Cork or that his son Daniel is from there? I have not found any records on the Ancestry trees that support this, other than the birth record above, but how do they know they identified the right Daniel? Before you delete your tree, I would contact some of the owners of the trees and ask why they think Daniel's father's name is Daniel? I am sure it is because of Daniel's death record. Also based on the name Denis, as father, on the immigration paper and Rossmore, Tipperary being identified where he is from, why do they locate him in Cork?
I would think Daniel would have known his father's name and where he was living when he filled out the immigration papers. That said, if someone was filling out the form for him, they may have made a mistake. or Daniel's family in Australia might have made a mistake on the death record.
Regards- Mary