Wiki has different parents for her:
https://www.wikitree.com/wiki/Hill-1454
Shows parents as
Nicholas Hill and Sylvestra (Bennett) Hill
Other than the work on Sally's Place that is referenced here on Geni and on Wiki only provides info from the will of Isaac Hill:
""Isaac Hill died in Chowan Precinct in 1710. In his will, he names sons: Michael, John and Isack, Nathaniel and daughter Martha--no surname given--: executor Robert West. Witnesses were William Maule, Edward Bryan and Hohn Hale. (recorded in Bk. 1712-1722, p 34). In the will, he suggests that his sons John and Isack should "go and live near their sister Martha." (Archives, Raleigh). This indicates that the Bryan brothers had come into North Carolina by 1710.
Later, in May 1741 William Bush 92-4), son of Martha Bush, deeded land to Isaac Hill (Jr.) "now in possession of Isaac Hill, " and John Hill was a witness of another deed, showing that he also lived in the neighborhood of the Bushes. If Martha was Martha Hill, she was much older than brothers John and Isaac."[2]"
The last sentence above is questioning her being the daughter of Isaac based on her 'much older than brothers John and Isaac', but doesn't mention that she's a lot older than the other sons listed, which makes me wonder if Isaac maybe had children from two different marriages. Although, no mother(s) of his children are mentioned. But another site has a wife named Mary Percy connected to Isaac as the mother of this Martha.
Also, the will of Isaac Hill doesn't in any way explain the parents connected on Wiki or here on Geni.
So, as I see, it three sets of parents have been offered up as parents of this Martha:
1) Thomas Hill and Mary Piersey
2) Isaac Hill and Mary Percy or an unknown wife
3) Nicholas Hill and Sylvestra Bennett
Thanks in advance for any documentation clarifying / proving her parents.
2)