The stamps below are the whole of my Ireland collection; I even cheated and went out a bought a few in the local market.
Now I had heard of Oliver Goldsmith, but I must confess I didn't know he was Irish. I first came across his works when a local society put on 'She Stoops to Conquer.'
I've looked up the 2.1/2 p stamp at the bottom and found that it was issued in 1948 (a 150th anniversary stamp) and contains the picture of Wolf Tone who with Lord Edward Fitzgerald established the United Irishmen in the 1770s. When the French tried to land a fleet in Ireland in 1798 Tone was captured on board one of their ships. He was sentenced to death by the English at a court marshall in Dublin and sentenced to death. His request to be shot was refused. He attempted suicide by slitting his own throat after being sentenced to hang.
Not a pretty topic for Sunday Stamps.
The 4p stamp at the bottom right tells of a different battle. CATH AR OCRAS means, I believe, 'Battle Against Hunger.'
More Irish/green connections at Viridian's Postcard Blog - 11