Hello Rebecca - I don't know how much help I can be but I might be able to point you in a few directions.

Bonnie Blue-Eyed Nancy was done by the Bothy Band on either the lp "Old Hag You Have Killed Me" or "Live in Paris" (I think it is a slightly different title.

A Night Visitors Song I think was recorded by the Tannahill Weavers but on which recording I am not sure. (Again I think it was another title)

Banks of Claudy I have heard several places but I believe there are also several versions in one of Helen Creighton's books, possibly Songs and Ballads From Nova Scotia.

Thousands are Sailing was on a Planxty lp I'm not sure of the title but it was one of their later recordings before the split. I think some of the words are:

You brave Irish heroes, wherever you be I pray attention and listen to me We're(?) leaving old Ireland no longer can stay And thousands are sailing for Amerikay (spelling is as it was pronounced)

Good luck with the rest and if I see any more I'll forward on what I can.