Allmusic.com lists 31 recordings of THE GENTLE MAIDEN. Some are instrumental arrangements. Here are some vocal versions:

John McCormack (from 1940), on "The Voice of Ireland: 25 Popular Songs and Ballads," Prism Classics CD #28, 1998.

Joseph McNally (from c1947), on "Legendary Irish Tenors," Intersound CD #1155, 2000.

John Fowler, on "Irish Celebration: The Sands of Tramore," Direct Source CD #6187, 2000.

Frank Patterson, "Love Songs of Ireland," Rego Irish CD #3097, 1996.

I've listened to several sound samples, and examined a couple of transcriptions found on the Internet, and here's my corrected copy:

There's one that is pure as an angel, and fair as the flow'rs of May.
They call her the gentle maiden, wherever she takes her way.
Her eyes have the glance of sunlight, as it brightens the blue sea wave,
And more than the deep-sea treasure, the love of her heart I crave.

Though parted afar from my darling, I dream of her ev'rywhere.
The sound of her voice is about me, the spell of her presence there,
And whether my prayers be granted, or whether she pass me by,
The face of that gentle maiden will follow me till I die.