Thanx for the information.
Principally I am looking 4 tunes because the purpose is to accompany a DVD of video + slide show. I feel that too much speach will detract from the visuals. As is clear from the above - there are many songs but few tunes. I think these are all songs basically. But I have them as ABC files

Erie Canal Stick Dance.abc
Ardrossan Canal.abc
Caledoneon Canal.abc
Farmington Canal Song.abc
Barge Inn.abc
Bally Canally.abc
Grand Canal.abc
Raging Canal.abc
Paddy On The Canal.abc
DARKEYED Canaller.abc

PS can't find the real (ha) Bargy on two tune finders.
And Royal Canal sounds like the Dominic Behan song: everyone sing -
"All along the banks of the Royal Canal".