This was my grandfather!! James Seery of 10 Beresford Place (No 188 on the Membership Roll of the Irish Citizen Army) was in the North Wall Section of the ICA and is listed on the City Hall Garrison, Roll of Honour. He was born in 1894 and died on the 8th October 1974. He fought in Dublin Castle, Dublin (Guardroom, Upper Castle Yard); he evaded arrest or capture following his participation in the 1916 Easter Rising, had no further service and was awarded the 1916 Rising Medal for his services.
I hope this helps