The Donnor family was a part of the group of American pioneers. They were heading West for California. They figured they might as well take a short cut, well th family found themselves trapped in the Sierra Nevada. They experienced many hardships, they starved, froze, had many sicknesses. They had quickly finished there food, the only thing left living around them, was themselves. They became cannibals. The family ate each other. That changed the Westward movement. It proved all the hardships and things that happened during the adventure West. It was a very cruel, sad event that changed the movement.