There seems to be TWO songs called "Lewis Bridal Song".

I have an old recording by Father Sydney MacEwan of a song called "Lewis Bridal Song" which is completely different from "Marie's Wedding". The words are:

I'd sail with thee to Miabhaig (Miavaig) in Uig,
E'en though in twilight, e'en though in twilight,
I'd sail with thee to Miabhaig in Uig,
E'en through the dark and the sea mist.

Chorus
Morag bheag (little Morag) of the golden hair,
Fair as the dawning, fair as the dawning,
Morag bheag of the golden hair,
Lightly she stepped to her bridal.

How shall we fare when the wind's in the sail?
And storm clouds gather, storm clouds gather,
How shall we fare in the whirl of the gale?
Out in the midst of the Islands.

Who is the maiden who dances with joy?
Like foam on the wave tops, foam on the wave tops,
Who is the maid on the dancing floor?
She is the bride who came sailing.

This song is credited to "MacIver". The melody is very beautiful (to me at least). Miabhaig is a hamlet in the parish of Uig in western Harris. The "Islands" are in Loch Róg.

Anyone know which song came first and if "Lewis Bridal Song" is the correct title of this song? And who was "MacIver"?