1901 DED	1901 Townland	1911 Townland	1911 DED	Barony	Parish	Union
		Rochfort Bridge Town (This is called `Castlelost' the same as No. 1, on Enumeration Abstract but Rochfort Bridge Town on the printed list)	Castlelost
Castlelost	Castlelost	Castlelost	Castlelost	Fartullagh	Castlelost	Mullingar
Castlelost	Clonytallon	Clontytallon	Castlelost	Fartullagh	Castlelost	Mullingar
Castlelost	Derry	Derry	Castlelost	Fartullagh	Castlelost	Mullingar
Castlelost	Farthingstown	Farthingstown	Castlelost
Castlelost	Fearmore	Fearmore	Castlelost
Castlelost	Kiltotan and Collinstown	Kiltotan and Collinstown	Castlelost	Fartullagh	Castlelost	Mullingar
Castlelost	Oldtown	Oldtown	Castlelost
Castlelost	Rahanine	Rahanine	Castlelost	Fartullagh	Castlelost	Mullingar