Graveyard Blues by Ollie Gilbert originated in 1923 as Ida Cox's Graveyard Dream Blues (Paramount 12044). Graveyard Blues was also in the repertoire of other mountain musicians, including Roscoe Holcombe (Folkways FA2363) and Hobart Smith (Rounder CD 1702).
Now compare this with the chorus of Graveyard Blues by John Jackson:
I'm gonna start a graveyard of my own
If that man don't leave my gal alone.
My razor's got a rusty blade.
Gonna lay that man right in the shade.
I'm gonna start a graveyard of my own.
This is the version that related to Reuben's Train/Reuben songs.