Papers of Dr. William Henry Gray (1810-1889), a physician and lay missionary for the American Board of Commissioners of Foreign Missions who was active in the Oregon Territory. Includes typescript and original letters and other documents regarding missionary activities; typescript of the diary of Gray's wife, Mary Augusta Dix Gray; original of William Henry Gray's diary for 1836-1837, and original documents concerning a land claim dispute that Gray had with Josiah L. Parrish.