I've found that while it's the best that's available, The [Nearly] Complete Collection of Woody Guthrie Folk Songs isn't nearly as complete as I'd like it - and it doesn't help me find this song.
Oh, wait - I don't think it's by Woody. It's Don't Ask What a River Is For (click), by Pete Seeger - and it's in our Digital Tradition Folk Song Database. Melody is "Over the Waterfall."
I wonder if there's any chance you'll find this. It was buried in the "unanswered requests" thread, so I moved it here.
-Joe Offer-