Mary Jemison was an American frontierswoman and an adopted [Seneca Nation|Seneca]. Mary Jemison was born to Thomas and Jane Jemison aboard the ship "William and Mary" in the fall of 1743 while en route from Northern Ireland to America. Upon their arrival in America, the couple and their new child joined other Scots-Irish immigrants and headed west from Philadelphia, … Wikipedia
I n the fall of 1743, somewhere on the stormy Atlantic, a child was born to Thomas and Jane Jemison aboard the ship William and Mary. www.letchworthparkhistory.com/jem.html
The definitive Wikipedia entry for Mary Jemison. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Mary_Jemison