Castles households mapped in 1901

Click on the red marker on the map below for a link to the full 1901 census entry.

Cassells	fairly numerous: Dublin, Midlands, Belfast. Ir. Ó Caisil, Ó Maolchaisil. See also Caslin. This is also a Scottish name, which could account some of those in Ulster.
Castles	Quite numerous: Belfast, N Down. English & Scottish but see also Cassells.

DEDs where Castles and a second surname are found together

This list shows total 1901 Castles households by county.
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Castles heads of household in the 1901 census