Bridget Mason was born a slave and eventually became a rich businesswoman. "Bridget "Biddy" Mason: From Slave to Businesswoman" is one biography you could use.
Bridget "Biddy" Mason was a female nurse and midwife . She was given to Robert Smith and his bride as a gift at their their wedding. She gained freedom when her owners moved to Utah in 1856. More can be learned in Bridget "Biddy" Mason: A Walking Sensation.