part of the above info. kindly posted by Rory can be found at https://www.scottishpoetrylibrary.org.uk/poet/domhnall-ruadh-choruna/ but I don't know what is the original source of the article (Scottish Poetry Library doesn't give any credit either, as far as I can see. Perhaps from a book on Gaelic literature?

two verses from "Dhan Ghàidhlig" by Dòmhnall Ruadh Chorùna are posted at
https://mudcat.org/thread.cfm?threadid=56849#934978 , message dated 16 Apri 2003. It will be worthwhile sharing some more of his poems which have been set to music, such as An Eala Bhàn and Eubhal, at Mudcat in the near future.

regarding the fact that the bard's poems were originally preserved orally before they were transcribed, "He briefly attended a district school at Carinish, but, due to the Education Acts, only English was taught in he schools. As a result, the bard would never learn to read or write in his native language." (my source: https://www.antiwarsongs.org/artista.php?id=12514&lang=en&rif=1, which is based on info at https://en.wikipedia.org/wiki/D%C3%B2mhnall_Ruadh_Chor%C3%B9na )