Here's an old version from an MS found in the possession of Sharp's informant Sol (Solomon) Shelton of Alleghany County in 1816. (cf. In Zepo Town). The Shelton's and most of Sharp's informants in that region of NC are descended from Roderick who was b. 1754 in Virginia. This version dates back surely far into the 1800s.
Lonesome Valley [One Evening All Alone] - From Sol Shelton's MS; 1916
One evening all alone a-talking Her brother cease[d] [talking] for to overhear Saying: Your courtship now will soon be ended, We'll force him along into his grave.
They rose up early the next morning A game of hunting for to go And upon this young man they both insisted, For him to go along with them.
They wandered over hills and mountains And through a many of a place unknown Till at last they became to a lonesome valley And there they killed him dead alone.
When they returned back the next evening Their sister ask[ed] for the servant man, Saying: we lost him on a game of hunting, No more of him it's could we find.
While she lie on her bedside slumbering The servant man did appear to her Saying: Your brother killed me rough[1] and cruel All wallowed in a gore[2] of blood.
She rose up early the next morning, She dressed herself in rich array, Saying; I'll go find my best beloved, All wallowied in a gore[2] of blood.
She wandered over hills and mountains And through a many of a place unknown Till at last she became to the lonesome valley And there she found him dead alone.
Saying: Your eyes look like some bloody butcher, Your eyes look like some salt or brine. Skhe kised his cold, cold lips and crying, Said: You are the darling bosom friend of mine.
When she returned back the next evening Her brothers asked her where she'd been O hold your tongue, you deceitful villains For one alone you both shall hang.
Her brothers then they came convicted To jump in a boat and finally leave[3] The wind did blow and the waves came o'er them They made their graves in the deep blue sea.
1 usually "rash and cruel" 2. MS has "score" 3. "find relief" is found in "Zepo Town"