The three volumes of Maziere Brady’s history of the Dioceses of Cork, Cloyne and Ross are now online at Cork Past and Present:http://www.corkpastandpresent.ie/history/bradysclericalandparochialrecords/
These records were updated by Cole which is also online at Cork Past and Present.
For Maziere Brady on Wikipedia
http://en.wikipedia.org/wiki/William_Maziere_Brady
For details of population, schools etc.
West Cork History 