The songs that were purged were either from the classics (there were melodies from Beethoven, Chopin, Von Weber and Brahms) or hymns from other religions. One of my favorites from the green songbook was the last one. I think it was called "Blessed Zion."
After being out for about eight years, the songs from the green song book are the ones that stick. For me, it was some of the first music I ever heard. Later in life I came to appreciate that the four-part harmony arrangements were well-written and the melodies were easily sung.
Emma: If I'm the composer you're talking about, not only were my songs not expunged from the latest songbook, but three or more were added.