Harper's Encyclopedia of United States History
Benson Lossing, Ed.

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Bannock Indians,

A tribe of North American Indians, sometimes called the “Robber Indians.” It was divided into two distinct branches: the first inhabited the region between lat. 42° and 45° and reaching from long. 113° to the Rocky Mountains; the second claimed all of the southwestern part of Montana. The first branch was the more numerous. In 1869 the Bannocks of the Salmon River numbered only 350, having been reduced by small-pox and invasions of the Blackfeet. In that year about 600 of the Southern tribe were settled on the Wind River reservation, and in the same year 600 more were sent to the Fort Hall reservation. Most of the latter afterwards left the reservation, but returned with the Shoshones and the scattered Bannocks of the southern part of Idaho in 1874. In 1900 the Bannocks were reduced to 430 at the Fort Hall agency, and eighty-five at the Lemhi agency, both in Idaho.