Isaac Stevens is known in the region as the architect of the 1855 treaties that created the Nez Perce, Umatilla, and Yakima reservations. He was Governor of the Washington Territory, which made him the Superintendent of Indian Affairs, and, along with his Oregon counterpart, Joel Palmer, the treaty maker on both sides of the Cascades and all the way to present-day Montana.
Stevens was a West Pointer who used his experience with the Army Corps of Engineers, Mexican-American War heroism, and election support for President Pierce to lobby for and win the bid to survey the most northern route for a transcontinental railroad. Congress had commissioned the survey of four routes west, and, I believe, the northern route never had a chance in Congress before Southern secession, but in 1853, when he came West and war was still almost a decade away, Stevens did not know this. And in my recentRead The Article