1626. Abstract of Chancery Roll, O’Driscoll Lands in Barony of Carbery, McCarthy of Kilbrittain some Genealogies recited.
Colermore may be Collimore, Schull. BallymcCrawen the general area around Baltimore.
From a surviving Chancery roll. Original may be inspected at the National Archives.
Historical definition of Townland as the area that could be ploughed by a Seisreach (A Six-Horse team) in Forty Eight Days. This is from Pádraig Ó Loingsigh history of the parish of Caherdaniel.
Ancient Land Divisions:
Thomas Larcom, the first director of the Ordnance Survey of Ireland, made a study of the ancient land divisions of Ireland and summarised the traditional hierarchy of land divisions thus:[9][12] 10 acres – 1 Gneeve; 2 Gneeves – 1 Sessiagh; 3 Sessiaghs – 1 Tate or Ballyboe; 2 Ballyboes – 1 Ploughland, Seisreagh or Carrow; 4 Ploughlands – 1 Ballybetagh, or Townland; 30 Ballybetaghs – Triocha Céad or Barony.
West Cork History 
Dear Sir: I am very interested in the abstract you kindly posted here. I live in Virginia, in the United States, which makes doing Irish research somewhat difficult. May I ask, please, where this Chancery-roll material you obtained may be found in the Irish National Archives?
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