So, the pod for an AH idea I'm working on for a timeline about a colonization of America that results in a better situation for the natives involves the Levellers and Diggers (two groups that evolved in the English civil war who were radically egalitarian, in favor of common ownership of land, and other common traits of groups from the radical reformation, although the Levellers had a more secular political orientation rather than the actual radical Protestant diggers) traveling or being exiled to America in the wake of the civil war and serving as the basis for a syncretic cultural mixing between English settlers and the natives in America. (The starting point here was a brief flight of fancy of the diggers joining the Iroquois confederacy as a seventh tribe).
So I'm wondering if people have any good resources and ideas and practices of these groups beyond the stuff on Wikipedia. I have decent resources at hand for information on Native American groups from anthropology archives online, so mostly looking for the initial English side here.