Does anyone have complete lyrics to this tune covered (though I'm fairly sure not written) by "R. Crumb and His Cheap Suit Serenaders"* on an eponymous 10" record (Blue Goose label, perhaps?) issued in the late 60s/early 70s?

The lyrics I remember from River Blues run approximately thus:

"Wrote my will, made a few notes, Gonna walk into the river till my straw hat floats; I'm goin to the river, the shivery river, So get the river ready for me."

As always, any help is appreciated.

*Allan Dodge and Bob Armstrong were the other two of the 3-piece Cheap-Suiters. Crumb played banjo, the other boys played mandolin and guitar, I believe. Crumb also did the artwork for this 10" record and at least one other he recorded at about the same time. As I recall, the label on one of the discs boasted of its "High Standard of Standardness"...

(Crumb's set of trading cards featuring his portraits and bios of blues legends has been the subject of a thread or two here at the Cafe, too.)