Here's the tune Becky linked to above:

X:1
T:The Coal Owner and the Pitman's Wife
N:tune submitted by Desert Dancer
N:from http://www.crixa.com/muse/unionsong/u013.html
I:abc2nwc
M:6/8
L:1/8
K:Bb
zz4G|G d d d d d|d e c d2(B/2 G/2)|
w:A dia-log I'll tell you as true as my life Be_
G G G B B B/2 B/2|B c B A2G|G G G d d d|e e e g2G|
w:-tween a coal own-er and a poor pit-man's wife As she was a trave-ling all on the high-way She
G G G G g f|g G G G2B/2 c/2|d3f3|d c B G2z
w:met a coal own-er and this she did say Der-ry down, down, down der-ry down