I wrote it in 1970, based on an article in the Sunday Times magazine 1 Feb, called "The Grapes of Wrath Vintage 1970" by prize winning author Norman Lewis. Everything about crossing the border, conditions, crop dusting etc. was true then. That's why I was moved to write it. I only invented the characters and the ending. Peggy cut one verse and changed a few words. My version can be viewed on http://www.youtube.com/watch?v=6h1Aeo7qWR4