Edward Wynkoop, Soldier and Indian Agent By Nancy Oswald #7 in the “Now You Know” series for young scholars by Filter Press ISBN: 978-0-86541-184-5 Reviewed by Forrest Whitman Cotopaxi author Nancy Oswald does a nice job of presenting this historical Colorado figure. Some young scholars will recognize that Wynkoop Street down by Union Station in Denver is named for him. Oswald does a careful job telling the military history story of the Colorado volunteers halting the Confederate advance north in 1862. Ironically that was a time Wynkoop became friends with Col. John Chivington – the same Chivington who led the ...