Liam, I wasn't referring to your father but asking if you have checked if he had any brothers or family that could have been involved in the 1916 Uprising or made a W.S.
Regarding the young age of your father, 18 years old , that was not unusual, the likes of Charley Dalton and Vinnie Byrne come to mind.
The Fianna Eireann, was the male youth movement, run on the same lines as the Volunteers, they were members of the Dublin Brigade, acted as spies, took messages, some as young as 11 years old, when they were old enough they moved up to the main Volunteers, staying with the same Companies and Battalions, one of my own relatives put down on his pension application that he was a" boy Sargeant in E.CO.2nd Batt. Dublin Brigade"
CSM"