Is it anything like DerryDown?

Hustvedt. 'Ballad Books and Ballad Men' essential reading for all to do with Child.

Chapter 1 should be a good comparison with Cole.
2. Scott
3. Scott's ballad clan.
4. English baldly stuff
5. 70 years of British Varia
6 The Scandinavians
7.Grundtvig
8. Child
Appendix A The Grundtvig-Child Correspondence. Very enlightening. essential.
Appendix B, a useful listing of all Child Ballads and their published variants+sources.