Most Rev. Dr. Comerford, in his entry for the Parish of Caragh and Downings in his historical work on the Diocese of Kildare and Leighlin, gives us the following information on St. Farnan of Downings:
"Here are the ruins of an old Church, measuring, according to Father O’ Hanlon (Lives I.S.S. 2, p. 564.) 42 ½ feet by 16. Tradition states that this Church occupies the site of the cell of St. Farnan, whose feast occurs in the Irish Calendar on the 15th of February. This Saint flourished in the sixth century, and was descended from King Niall of the Nine Hostages. Beside the ancient cemetery is the Well of St. Farnan; and it possesses - so the local story goes - the valuable property, imparted to it by the blessing of the Saint, that those who drank of it never afterwards have any relish for intoxicating drinks. The Dun from which this place probably takes its name (Dooneens, “the little fort,”) may still be seen a short distance from the village of Prosperous, on the left of the road to Caragh. The only doubt about its being so arises from the fact that, instead of being small, it, on the contrary, is one of considerable dimensions."
St. Farnan of Downings, pray for us!