1901 DED	1901 Townland	1911 Townland	1911 DED	Barony	Parish	Union
Ballyarthur	Ballanagh	Ballanagh	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Ballinastraw	Ballinastraw	Ballyarthur
Ballyarthur	Ballinvally (Valentine)	Ballinvally (Valentine)	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Ballinvally (Wisdom)	Ballinvally (Wisdom)	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Ballyarthur	Ballyarthur	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Ballycooleen	Ballycooleen	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Ballydonnell	Ballydonnell	Ballyarthur	Arklow	Redcross	Rathdrum
Ballyarthur	Ballygillaroe	Ballygillaroe	Ballyarthur	Arklow	Redcross	Rathdrum
Ballyarthur	Kilmagig Lower	Kilmagig, Lower	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Kilmagig Upper	Kilmagig Upper	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Knockanduff	Knockanduff	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Knockanree Lower	Knockanree Lower	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Knockanree Upper	Knockanree Upper	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Pollaphuca	Pollaphuca	Ballyarthur	Arklow	Castlemacadam	Rathdrum
Ballyarthur	Redcross	Redcross	Ballyarthur	Arklow	Redcross	Rathdrum
Ballyarthur	Redcross Town	Redcross Town (part of)	Ballyarthur	Arklow	Redcross	Rathdrum
Ballyarthur	Slieveanavode	Slievenavode	Ballyarthur	Arklow	Castlemacadam	Rathdrum