Big Mick,

I'm afraid that you're mistaken when you say that Fred Hellerman wrote "The Sinking of the Reuben James" *with* Woody Guthrie.

Fred would have been about 14 years old, and several years away from meeting Woody, when the song was written.

Years after the song was written, Fred wrote an additional verse for the Weavers version. With all due respect, adding a verse is not quite the same as co-writing.