I agree with Bill in reviewing the article. There is not much new information for people who have "read up" on Woody.
I've never heard the work Billy Bragg did, so I have no opinion. The idea to put some of his unpublished lyrics to music must be enticing for all concerned.
Woody certainly was a prolific writer and he was focussed enough to preserve what he wrote. I remember SingOut! published some of his writings decades ago. As you might expect, the artistic worth of it varied depending on your own opinion of music as art.
I like Dirty Linen, but I wouldn't run out to buy it just for that article. However, if you've never bought one, this issue would be a fine introduction to the magazine (published in my home town, Baltimore).
Roger in Baltimore