 Now in our 75th year, Dale Graves Inc. GMC continues to be your dealership of choice. While many dealers have gouged the public with outlandish markups during the supply shortages, Dale Graves never did. Please check out our inventory at DaleGravesInc.com for in-stock and in-transit vehicles. Since 1950, our tradition of satisfaction continues. Dale Graves Inc., South 9th across from the fairgrounds. Walla Walla.