Dr William Drennan was a physician, a poet and a revolutionary.  .  He was a gifted doctor, introducing a smallpox inoculation programme into the Poor House in 1782.  It was 1798 before Edward Jenner published his paper on vaccines and innoculations.  Dr Drennan was a literary man and a prolific poet.  It is said that he was the first person to describe Ireland as ‘the Emerald Isle’ in his poem “When Erin First Rose”.