Jean Redpath's series on the "Songs of Robert Burns"...
the series from the School of Scottish Studies:Univ. of Edinburgh on Tangent Records.."Bothy Ballads", "The Muckle Sangs" etc..
the Peter Kennedy-Alan Lomax collection "The Folksongs of Britain" on Caedmon Records...absolute classics!!!!
The "Folk Music of the World" series on Washington Records ..Sung by Ewan MacColl & A.L. Lloyd..Nine volumes of songs in...and not in...Child
(there...that oughta use up a lot of the list!)