This was exactly the problem with the treaties signed in 1851. Reddick McKee went swirling through California with a saddle bag full of treaties to be signed by the chiefs of whatever tribe he encountered - Henry Halleck's man to help settle claims from the Mexican War. Up here, the Shasta treaty was signed by the chiefs of all five bands who were in California, with the sixth over the border in Oregon. They had to make their own treaty three years later amid the Rogue River wars. But there was no real chief of the Shastas, or even a tribal identity. Each band had its own name, spoke a different dialect and were connected by kinship ties. The kinship was much more important than an identifiable 'government'. There was no chief, as you point out.
Ah, yes, there are a number of villages, most recently named. Villages have inter-related people, though, is the real distinction. (Although some old towns could be in that category!)