Of course Pat Deasy, age 16, brother of Liam was one the three IRA men killed at Kilmichael. In Peter Hart's book which I quoted above there is a good account of the ambush, pro-/anti Barry points, false surrender, massacre/battle arguments. Hart conducted extensive interviews with two of the surviving "Boys", 1988-94. His conclusion is inconclusive! saying, basically, that the reality is gone, and that people on both sides of the debate will believe what they want to believe. It all happened so fast, there was a lot of shock and trauma, so even those who were there cannot be certain of the full, accurate picture. One thing seems certain: the IRA killed some of the Auxies after they had been captured. "Barry made us", said one of the "Boys" quoted by Hart, at the time of writing a history lecturer at Queens University, Belfast. Hart says the song MAY have been written by Jememiah O'Mahony, a local teacher. I learned the song when I was very young, from my father in Donegal, and will always sing it, despite everything.