Today is the feast day of the Dominican brother Martin de Porres. Many Irish people especially older people have a great devotion to this saint especially as there was a strong promotion of his cause before his canonisation by his Dominican brethern.
I remember once hearing the story of a woman who worked on Moore St in Dublin making the comment that St Martin was better worker as a blessed as he had become to full of his own importance and didn't answer her prayers after he was canonised!
Saint Martin was born in Lima, capital city of Peru, in the year 1579. His father was a Spanish knight and his mother a freed slave. He seems to have been neglected as a child, but he befriended a doctor who taught him the art of healing.
He was initially accepted as a servant at the Dominican Priory of Our Lady of the Rosary at Lima. Eventually admitted as a lay brother, he made profession in 1603. He worked with the sick and the poor, as well as taking care of animals, being known to have cured to most frightening of diseases and injuries (as much by prayer and intercession as by his medical skills).
He was taken to much prayer and penance. Having a particular devotion to the Blessed Eucharist, he would spend a long time in thanksgiving each time he received Holy Communion.
He died of fever on 3rd November 1639, and was canonised in 1962. His feast day is 3rd November.
This year is the 50th anniversary of his canonisation and Fr Ger over at Irish Domincan Vocations tells us of his own personal devotion to this saint and St Martin's practical contribution to the Irish Dominican province through the St Martin Apostolate.
Other information here, here and here.