On the "If I Should Fall From Grace With God" album they follow up South Australia with "Salmon Tails Up the River" (or possibly the tune for "Red Haired Mary" which is very similar).

"The Broad Majestic Shannon" incorporated the opening phrase of "Give Me Your hand" in the middle, if I'm not mistaken.

"Sit Down by the Fire" includes the A part of "The Blarney Pilgrim".

Can anyone name the tunes used in the "Battle March Medley" on "IISFFGW/God"?