I was wondering if anyone knows the origin of the following Ralph Stanley songs:

Bootleg John
This Weary Heart
Loving You Too Well
Sharecropper's Son

Loving You Too Well was recorded (first?)by Roy Hall and His Blue Ridge Entertainers. These songs have been recorded by other including Ricky Skaggs.

Are these traditional? Did Stanley write many songs or mostly borrow from earlier sources?

Thanks,

Richie