Dr. Douglas and Grace Corpron were missionaries from Yakima, WA who worked in China and later in the Philippines during the 1920s through 1950s. During their time in ministry, they wrote numerous letters to friends, churches, and government agencies. Many of these letters are preserved in this collection; most are complete, but a few are fragments. Also included in the collection are various newspaper clippings the Corprons collected, along with some of their personal belongings.