Document Records had a CD called Carolina Blues (1937-1947) that featured a couple of songs, including this one, by "Welly" Trice - but that's a rare find nowadays. The four disk Blind Boy Fuller Volume 2 from JSP records features the two songs by Welly and eight by Richard Trice.
Although the recording quality is good, the lyrics can be difficult to make out. One verse, for instance, sounds something like, "Oh Scarbird wants your body / And Megalon wants it too / Oh Scarbird turned his long-headed since / She was gone and she won't come back." If you can make more sense of this, please drop me a line.
To hear this song, click on "Let Her Go, God Bless Her" MP3.