...who is Black Jack Davy?
I wish I had a video I could embed here to explain. Instead I'm sending you over to this site to listen to Steeleye Span's version.
I'm not a fan of Bob Dylan's version, but that's just me. I prefer the creepier tones of Maddy Prior.
And why is Black Jack Davy on that sidebar over there? Because he's good hero. And his lover is a heroine who runs away from her responsibilities. Sorta like what I do when I'm blogging.