|"Silent Witness" The Diary of a Historic Tree at Fort Sill, by Towana Spivey - Silent Witness is both a narrative and graphic history of this very important frontier army post that was established in the Indian Territory in 1869 and continues as a major military training center today. This unique volume is presented from the perspective of a 250 year-old Bur Oak tree. Read the review by Oklahoma author Michael Ray here. You will not want to miss this truly unique approach to presenting the history of the nation, Oklahoma and Fort Sill. Click here to purchase this great book!