Looks strangely familiar...[in database]

1) PRETTY POLLY 3

A meeting is a pleasure
a parting is a grief
An unconstant lover is
worse than a thief
A thief can but rob you
and take all you have

2) ON TOP OF OLD SMOKY

Though courting's a pleasure
and parting is grief
A false-hearted lover
is worse than a thief
For a thief will just rob you
and take what you have

3) JOHNNY AND MOLLIE

A meeting is a pleasure
but parting is grief
An inconstant lover
is worse than a thief
For a thief can but rob you
and take all you have