To find Patrick Downey you may have to search in the Catholic Parish Registers. Looking at Griffiths Valuation there are Bartholomew Downeys in 2 areas you could start with-one in Boherboy,Kanturk, co Cork which is in northwest Cork very close to Kerry border and another Bartholomew in parish of Kilcatherine, co Cork which contains part of Kerry as well particularly Eyeries which can be listed as part of co Kerry. Remember even tho' Civil Registration for Catholics began in 1864 it was a while before many registered births of children. You best bet is to try the Parish registers.
