There is at least one error in the DT version linked to above. The third line shopuld be Dungannon, which is quoted correctly in the last verse. Dungannon is a town in County Tyrone in Northern Ireland.

Thomas Street is just South of the Liffey, not far from Christ Church. Whiteman's Bridge doesn't mean anything to me. May be an error, or perhaps a name I'm not aware of. Off to do some research...