Gearóid O’Sullivan was a teacher, Irish language scholar, high-ranking army officer, barrister and a TD from 1927 to 1937. He had the honour of raising the Tricolour over the GPO as fighting raged the streets of Dublin during the 1916 Easter Rising. O’Sullivan, then 25, was the youngest IRB officer fighting in the GPO (three months younger than his cousin Michael Collins). He had been personally chosen by leader Seán Mac Diarmada to serve as his aide-de-camp.
Image: Declan Kerr Art, Easter Rising 1916 Series