This is a live solo performance from back in 2001. Kate was already such a polished presenter of traditional songs.
Kate recorded this song with a band on her 1999 CD ‘Sleepless‘. It was re-recorded in 2002 for her tenth anniversary collection ‘Ten‘.
This song is a version of #215 in Francis James Child’s famous collection ‘The English and Scottish Popular Ballads’, generally known as ‘The Child Ballads’. I believe the tune is Kate’s own.