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Nancy Green was born a slave in Montgomery County, Kentucky in 1834. Her given name was Nancy Green, but the world knew her as "Aunt Jemima." Although the famous Aunt Jemima recipe was not hers, she became the advertising world’s first living trademark. She was attractive, friendly, a good storyteller, and an excellent cook. Her ability to project her warm and appealing personality made her the ideal "Aunt Jemima."
http://www.toptags.com/aama/bio/women/ngreen.htm