Away Out on Saint Sabbath is a rewrite of Bury Me on the Lone Prairie. Here is a link with chords and a recording:

http://bettylou.zzruss.com/awayoutontheoldsaintsabbath.htm

Clearly this is rewritten to such an extent it sould be considered an original song by the Carter Family. Here's the lyrics to the cowboy song dating back to 1872:

"O bury me not on the lone prairie"
These words came low and mournfully
From the pallid lips of the youth who lay
On his dying bed at the close of day.

CHORUS: "O bury me not on the lone prairie
Where the wild coyote will howl o'er me
Where the buffalo roams the prairie sea
O bury me not on the lone prairie"