Items appraised in Portland, Ore. (Part 1 of three) include items carried by settlers who traversed the Oregon Trail in 1852; radio logs of official accounts of the Pearl Harbor attack; a portrait miniature of Samuel Osgood, the first U.S. postmaster general, owned by an Osgood descendent; and a Native American portrait by J.H. Sharp, the founder of New Mexico's Taos Art Colony. Also: a segment on Native American artifacts at the Portland Art Museum that have feathers from endangered birds.