According to an Ancestry article about Barack Obama's Bunch lineage, Mary was the daughter of James Bunch b ca 1724. James was the 8th child of John Bunch III, who was the son of John II, who was the son of John I, who was the son of John Punch. According to James' will, he gave his daughter Molly (Mary Polly) Gentry 100 acres adjoining his own land and the tract he gave Margery Harris (and had already given her a cow, calf, and feather bed). Descendants of John Bunch III, include Barack Obama's white mother, Stanley Dunham, who we believe was descended from David Bunch.

John Punch was the immigrant who came from England in the 1600s as an indentured servant. Normally, indentured servants served for 7 years before attaining their freedom in order to pay for their passage from England. It is known that John Punch was either black or mulatto. He married a white woman. For further information about him you can google him and Wiki has a page about him. He was the first documented slave in America.

Mary's death year is unknown, but she must have died after the last child was born, so possibly 1802-1815, as Blaxton remarried in 1816. Mary married Blaxton Gentry 14 Mar 1786 in Louisa Co, and they had the following children:

1. James Gentry b 1787 VA
2. Joseph Gentry b 1789 VA
3. Nicholas Gentry b 1790 VA
4. Martin Gentry b 1793 VA
5. Samuel Gentry b 1794 VA
6. Elizabeth Gentry b 1796 VA
7. Mary Gentry b 1798 Bullitt Co KY
8. Ellison Gentry b 1800 Bullitt Co KY
9. Garland Gentry b 1802 Bullitt Co KY

In Sept 1816 Blaxston married Nancy Hough in KY and it is said that in the autumn of 1832 they moved their family to Stilesville, Hendricks, IN.

Blaxston and Nancy had the following children:

10. Barry Monroe Gentry b 16 Jan 1821 KY
11. America Gentry
12. Eliza J. Gentry
13. Sarah Ann Gentry
14. John W. Gentry
15. Jeremiah Gentry
16. Melvin A. Gentry
17. Hezekiah Gentry

I have included Blaxton's second marriage and children because I do not own his memorial. Also, I am descended from their son, Martin Gentry.