A photograph (above) of Byrne faces page 185 in Nicholas Furlong's ""Fr John Murphy of Boolavogue: 1753-1798"" (Dublin, 1991). According to the author, it was taken in Paris in 1859 and was thought to be the first photograph taken of an Irishman. That distinction is probably owed to an 1844 calotype by the pioneer photographer Henry Fox Talbot of the Irish poet (and biographer of Wolfe Tone) Thomas Moore. (In 1821 Byrne had refused to attend a St Patrick's day dinner Moore had organised in Paris because of the presence of Wellesley Pole Long, a nephew of the Duke of Wellington).