Okay, I know animated GIFs can be annoying but what the hell. Here is one that gives an idea of the process and edits that go into some of these Notable Missourian illustrations. This illustration is for the book on William Clark (Published by Truman State University Press). Here a young Clark is shown hunting with his slave and contemporary, York. York would later accompany Clark on his trip across the continent to explore the Louisiana Purchase and search for a Northwest Passage.