I used to hang out at the Folklore Center on MacDougal and was around when Caravan and Broadside were coming in.

Izzy was an important catalyst, not just because of Dylan, but because he is a highly moral person and decried violence and authoritarian aspects of both the Political Right and Left.
He ordered people out of his store is they supported the Vietnam War and for some this would not be considered tolerant or inclusive but I support his position because he was doing this at a time when everyone else in the country was gung ho. He had strong opinions and I support them although I think that he and Irwin Silber would have seen eye to eye on many issues despite their disagreements in "Sing Out!" Irwin was not that didactic that he couldn't be flexible when the world changed. Izzy is a principled person and did a lot to promote folk music in the New York area at time.

Irwin and Izzy, two of a kind, moral, principled men who both had different visions for the world, equally valuable.