The Grange is definitely an organization worth reviving. I particularly like that they have buildings in most rural areas where I have lived, and groups which are still actively holding monthly potlucks open to the public. The members I have met tend to be elderly but wonderful people. I see them as holding the space and hoping younger folks will step in.
Here's one sample of my grange experience: I attended a grange meeting/potluck while visiting a friend in Sunny Valley just north of Grants Pass (Oregon) in early 2013. I had an opportunity to pledge allegience to the flag, participate in a group prayer, listen to last month's minutes, and, among other business, listen to a member's concerns about the mining bill in congress, that it would reduce the freedom of dredge miners in the rivers (he runs a business to supply them). This member, an intelligent, friendly guy who keeps a small herd of entirely free range (fenced) cattle, also opined that people on food stamps were freeloaders.
Believe it or not, I loved these people, they were friendly and funny and the guy I am referring to was happy to calmly discuss our differences. So while the grange is worth reviving, it requires expanding our horizons a lot. To me also, it is a priceless opportunity to form alliances and work out differences across the political divide.