Steve - British Ballads from Maine (1929 edition) is organized in 3 sections:

1-56: The Child Ballads (given in Child's order, at a quick glance from The Elfin Knight to The Trooper and the Maid).

57-64: Secondary Ballads (Soldier's Wooing, Loathly Bride, Gallows Tree, John Webber, Squire of Edinburgh Town, Yorkshire Bite, High Barbary, Sally and Her True-love Billy)

65-94: Traces and Jury-Texts

In the Foreword they write:

"This collection builds a New England superstructure upon Professor Child's well-laid foundations. We do not ask why he accepted or rejected his titles, but we try to square our work to his lines and to agree with his conclusions wherever possible. Sound critical work upon Child's own lines has been the objective.

Yet is some respects it has been impossible to be bound by Professor Child. The study of ballad music was outside his chosen field. Though he gathered some records of melodies with his texts, he did not weigh them...

Furthermore, Professor Child confined himself to the English and Scottish variants of the ballads. He printed very few texts from Irish sources. But in Maine the Irish element is very strong and often very old. In calling these "British Ballads" we have enlarged the field of study."

So based entirely on Child, but acknowledging that Child was interested in the literature of the ballads, not text+music.

Mick