Thanks Dathai, yes that seems to be Bernard Halpenny from Cork St. Its very useful to know when he died.
The 1911 census revealed the interesting fact that Bernard, aged 11, could read and write both English and Irish. Of the 12 people in the house, only two, Bernard and his sister ( aged 12) could read and write Irish. Obviously they were attending Irish classes.
I do not know for sure how Bernard died. I am not aware that any of the Halpins were shot, although it they were active on the Republican side.
Private 1st Class refers to a Halpin being shot by the IRA. I think that the person who was shot by the IRA may have been Owen Hoey, who I understand was a cousin of the Halpins. Owen was shot and killed by the IRA on James Walk, on the 28th July 1912, within weeks of the Truce on the 11th July. He was presumably shot because he was a Constable in the Royal Irish Constabulary. He was based somewhere outside Dublin. He was on his way from Kingsbridge Station when he was shot. There are different theories as to where he was going. One suggestion was that he was going to propose to his girlfriend, another that he was going to visit his sister and the other was that he was going to visit the Halpin family in Cork St.
But back to the original question, relating to Patrick Halpenny/ Halpin. He does not appear in the 1911 census when he would have been 10 years of age. Any views on where one can find out more?