An interesting story about a Confederate widow here. Mrs. Alberta Martin was well-known at Confederate gatherings in Alabama and elsewhere in the South. She was given an 1860s style funeral:
Confederate funeral

A song was written in her honor by Ron Taylor, Sons of Confederate Veterans Southeast Brigade Commander.

Chorus:
Go rest high on the mountain.
Sis, your work on earth is done.
Take your flag up to heaven,
Wave to the Father and the Son.

I have not found the rest of the song.