What town on the Castletown River was the home of a famous radiologist who lived from 1900-1979
Dundalk Dundalk ( , Irish: "Dún Dealgan" , meaning "Dalgan's fort" ) is the county town of County Louth, Ireland. It is on the Castletown River, which flows into Dundalk Bay, and is near the border with Northern Ireland, halfway between Dublin and Belfast. It has associations with the mythical warrior hero Cú Chulainn.
Castletown, Isle of Man Castletown (Manx: "Balley Chashtal" , pronounced ] ) is a town geographically within the parish of Arbory and Castletown of the Isle of Man but administered separately. Lying at the south of the island, it was the Manx capital until 1869. The centre of town is dominated by Castle Rushen, a well-preserved medieval castle, originally built for a Viking king.