"Three Young Ladies", also known as "The Bonny Banks of the Vergie-o" is a Newfoundland version of a ballad known from Scandinavia through Scotland to America. The story of a double murder followed by a suicide is similar to the story of "Lord Thomas" except that all the deaths in this ballad are in the same family. It is accompanied by a simple Dorian mode tune with two refrain lines.
It appears as Child #14 "Babylon or The Bonnie Banks o' Fordie". It also appears in the Roud Index of Folksongs as #27 and in Lomax's Folk Songs of North America.
It was recorded by Nic Jones, Pete Coe and several others but I have not heard any of the recordings.