I forget when I first heard this, but I had a great time relearning it in the Intermediate jam session at Midwest banjo camp in 2006. Alan Jabbour was the fiddler and leader, and Cathy Barton-Para had joined us after her singing jam had finished. It was one of the many musical high points I've had. We played three "G" tunes, Barlow Knife, Ebeneezer, and Magpie.
Addendum 2013; Recently I changed how I play the tune, mainly based on playing with a fiddler who played out of the Fiddlers Fake Book. The video is my changed version.