The source for the tune I learned today is Adam Hurt's recording "Earth Tones," which despite the new-agey title, is a gorgeous album of old time tunes he plays on a gourd banjo. Gorgeous stuff. This tune is on the last track. I also listened to Stephanie Coleman's version, and play it in that key (G dorian.) Also Stephanie's version is straight (not crooked), and Adam's version is crooked.