One of the 26 June 2016 posts on this thread, is correct, but a little confusing; this post is intended to clear it up.

"Nicholas Tobin" is named, on the Gaelic sleeve notes to the 1971 "Máire Ní Scolaí" LP issued by Gael-Linn, as one of the educators at Colaiste na Rinne in the Co. Waterford Gaeltacht, where Ní Scolaí, when young, went to undertake in-depth studies of the Gaelic language.

The fact is that there are TWO men named Nicholas Tobin / Nioclais Toibin.

The Tobin/Toibin known as a sean-nos singer was in fact younger than Ní Scolaí; Toibin was born in the 1920's, while Ní Scolaí was born in 1909.

There was, however, an author and lecturer also named Nicholas Tobin, whose dates I do not have. However he was the lecturer in question at the Colaiste, and he was a prolific author of translations into the Irish Gaelic, the better to propagate and promote the language. He is much the senior of the two men with the same name. Since both men, with the same name, came from Ring / an Rinn in co. Waterford, is it safe to guess that there is some blood connection? At any rate, it is confusing only if you presume that the name refers to only one man, when in fact there are two.