Finvola, the Gem of the Roe - and an Islay 'youth clad in Tartan'

Sam Henry (1878 –1952) was an Irish folk song collector from Coleraine who assembled nearly 700 songs in the 1920s and 1930s for his weekly 'Songs of the People' column in the Northern Constitution newspaper. One of these, 'Finvola, the Gem of the Roe' includes a 'youth clad in Tartan' from Islay who seems to have fallen for the ill-fated Finvola.

source: Sam Henry's Songs of the People (2010)

The song relates to an Irish folk tale - 'A local legend tells the story of Finvola, the Gem of the Roe. Dermot O’Cahan and his daughter Finvola, were visiting Scotland and on their way home their boat was blown onto the island of Islay, the headquarters of the MacDonalds, the Lords of the Isles. They were accorded great hospitality and while they were on the island Angus, the son of the MacDonald chieftain, was very much taken by the beauty of Finvola. After their departure for Dungiven, Angus was unable to settle down and he eventually confided to his father of his love for Finvola. His father persuaded him to go to Dungiven and ask Dermot for his daughter’s hand in marriage. Dermot agreed on the condition that Angus should send back her body on death for burial in Ireland, as he didn’t want her to be buried in a foreign land. Angus and Finvola set off for Islay but ‘short was the fond years these lovers did share’. Finvola died young and Angus could not bear the thought of sending her body back to Dungiven so he buried her on Islay. The O’Cahans would never have known anything about her death but for Gráinne Rua, the family banshee, who wailed and lamented her death. The O’Cahans decided to mount an expedition against the MacDonalds and claim back Finvola. On their arrival on Islay, Angus intervened saying that he was to blame and that he did not want warfare over this. He admitted that his only fault was that he loved her so much that he couldn’t part with her body. He gave back Finvola’s body to Dermot, who took it back for burial in Dungiven' (source)

There is a statue of Finvola in the village of Dungiven, Co. Derry. The Angus MacDonald referred to is presumably 14th century historical figure Aonghus Óg Mac Domhnaill of Islay, but there is no reference in his actual history to any Finvola - though his actual wife Áine Ní Chatháin was from Ulster.

There are some lovely versions of the song out there, including by Cara Dillon. But unfortunately all the ones I've found so far leave out the reference to Islay and include a nonsensical reference to the non-existent 'Isles of Abunde'. Anyone found a version with Islay mentioned?! Someone should have a go at it if not.