Sarah Sherrill died 8 Sept. 1844, in the 71st year of her age. Thus she was age 70 and living in her 71st year so she was born ca 1774.
The limited information does not reveal the name of Thomas M. Sherrill's wife during the years of his children's births. No information has been found that documents whether Sarah was mother of all the children, some of the children, or none of the children. The assumption is that Sarah was the mother of all of his children.