Details of Mary's birth are not known.

Mary married Thomas Greenhough on Monday 28 July 1755 in St Marys Church, Brewood, Staffordshire.

She had the following children from her marriage to Thomas Greenhough:

- William Greenhough	born around 1756.
- Thomas Greenhough	born around 1759.
- Sarah Greenhough	born around 1761.
- John Greenhough	born around 1763.
- John Greenhough	born around 1767.
- James Greenhough	born around 1771.
- Ann Greenhough	born around 1772.
- Ann Greenhough	born around 1779 in Alrewas, Staffordshire.