Stum-ma-nu, ca. 1819-1839 (Chinook) was born near the mouth of the Columbia River and became a successful student in the Methodist missionary school of Rev. Jason Lee in the Willamette Valley near present-day Salem, Oregon.  This portrait was painted in 1838 or 1839 when the subject toured eastern cities to assist Lee in raising funds for his missionary efforts.  Stumanu died in New York City.