The Digital Tradition entry for The Walker of the Snow (see Levana's link on this thread 16 Nov) says "Sung by Davy Spillane on "Shadow Hunter," TARACD 3023, 1990". Davy Spillane plays on his album, but the singing is unmistakably that of Seán Tyrrell (r.i.p. 30 Oct 2021). I saw Seán and Davy at a gig once. Davy played uilleann pipes and whistle and I don't remember him singing anything.
Walker of the Snow (via youtube)