Elizabeth Cotten (who was born in the next town over from where I live) taught herself to play guitar when a girl, then didn't play for decades and basically forgot how to. When she became a maid for the Seeger family, she taught herself to play again and recorded this amazing song. She wrote Freight Train when she was 11; she recorded it in her fifties. It has since then been covered by over a dozen artists.
Binging on the massive amount of Folkways Records on Spotify and I happened upon Elizabeth Cotten. Wow. Things I learned today:
1) Elizabeth Cotten wrote this song when she was 12
2) She played guitar upside down (i.e., playing a right-handed guitar, strung right-handed, left-handed)