Some history:
"Baker Boyer Bank A Walla Walla, Washington based financial institution, opened in 1869 becoming the first bank in what would become the State Of Washington. It was started by Dr. D.S. Baker and John Boyer.The Bank's current 7-story headquarters at the corner of 2nd And Main Streets in Downtown Walla Walla was, for a short time, the tallest building west of the Mississippi."
Source: Wikipedia