From the BPC Historical Collection  
ISBN: 978-1451587067
 The Donner Party was a group of American Pioneers who set out for
winter of 1846-47 snowbound in the Sierra Nevada Mountains. Some of the
emigrants resorted to cannibalism to survive, eating those who had
succumbed to starvation and sickness...and some say murder.

Historians have described this episode as one of the most spectacular
tragedies in Californian history and in the record of western migration.  
History of the Donner Party
A Tragedy of the Sierra
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