The Life of Mary Jemison By jwoodwor Mar 22, 1775 Young man and boy given to the French Leaving Mary companionless Apr 22, 1775 Mary held captive by Shawnees Mary with many others are seperated and taken to a French Fort Jun 22, 1775 Mary given to the Seneca tribe Jun 23, 1775 Mary adopted by Seneca family Period: Jun 23, 1775 to Apr 22, 1776 Mary learns their way and language