Nice that they found a mix, I expected >90% of them to be religious or semi-religious (what you hear about the freemasons sounds quite cult-ish too, eg).
But not sure why they decided to include the Molly Maguires. Sounds like a plain mob to me, the Yakuzas and the Cosa Nostra probably have more rituals than those, and both are still very much in existence.
I think there's a strong correlation. For example, there was an Oddfellows chapter near me I checked out a few times. They turned out to be some weird sect of Wiccans. I mean, it's nice that they do good works, and I guess alls as well if they keep them separate, but I didn't intend spending time with people who pray to antlers and host nude religious gatherings. And it felt to me, perhaps in a way, they were using a known organization to 'recruit', even if they didn't see it that way.
But not sure why they decided to include the Molly Maguires. Sounds like a plain mob to me, the Yakuzas and the Cosa Nostra probably have more rituals than those, and both are still very much in existence.