Summary

Robert F. Murphy Shoshone-Bannock Subsistence and Society

Except for such figures as Washakie and Pocatello, a chief is rarely mentioned twice, and it can be hypothesized that many were the leaders of ephemeral predatory bands that arose for specific purposes of defense or agression against the whites and dissolved shortly after the period of emergency passed. Finally, any man who had achieved renown and prestige or was the leader of a camp group, was known as a "chief," for the lack of institutionalization and formalization of the office made its tenure most nebulous.
It was not even necessary that a Shoshone chief be a Shoshone.
Source: Gutenberg

Robert F. Murphy Shoshone-Bannock Subsistence and Society

It seems that there is a monopoly of the fisheries on the Snake River. The Banak Indians who are the most powerful, hold them in the spring when the salmon and other fishes are in best condition—later on different tribes of Shoshonees hord the monopoly. Last, and of course weakest of all, the miserable creatures such as are with us now, come, like gleaners after the harvest, to gather up the leavings of their richer and more powerful brethren.
Source: Gutenberg

Robert F. Murphy Shoshone-Bannock Subsistence and Society

Leadership over a large population, such as that exerted by Chief Washakie, was necessarily temporary in nature and was largely restricted to periods when people united for the common enterprises of war and buffalo hunting. During the summer and most of winter and spring a host of minor chiefs of varying influence and prestige were responsible for directing the activities of clusters of followers. Even war and the spring and fall hunts did not necessarily entail the participation of an entire tribe. The buffalo hunters frequently split into smaller hunting parties when out on the plains.
Source: Gutenberg

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