Mac, do a SuperSearch on the words going home. Also, if searching on the 'net use the words go'in home and goin' home.
We've discussed this here, and there's lots of info. Most people think it was an old spiritual, but Dvorak seemed to have composed it after the "style."
It's used a lot here in the US at funerals. The firefighters also have a VERY close brotherhood, and use it and Amazing Grace often.
We'll see it a lot here soon.