Weldon Willis RauWeldon Willis Rau of Olympia, Washington, is a retired research geologist for the U.S. Geological Survey and the State of Washington. He is a great grandson of Puyallup pioneers Mary Ann and Willis Boatman, the principal figures in Surviving the Oegon Trail, 1852. Rau's book is the culmination of 15 years of extensive field investigations and archival/library study. Read More Read Less