Edward Benton Morelock 1902 & 1912 biographies
At GoogleBooks, you will find the 1912 biography of Edward B. Morelock in
Joseph Gaston and George H. Himes, The Centennial History of Oregon, 1811-1912, Volume 3 (Chicago:S.J. Clarke Publishing Co., 1912), 761-62
It's lengthier than the 1902 biography and includes why his father, Sheriff Morelock, was killed in Sullivan Co., MO, and also mentions Sheriff Morelock's widow's second marriage to Mr. Stewart (Price Stewart, September 7, 1851, my gr-gr-grandfather).
An image of the 1902 biography page in An Illustrated History of Union and Wallowa Counties (Western Historical Publishing Co., 1902), 463, can be found attached to an Ancestry Tree for Edward Benton Morelock (1845-1922).