Details of Mary's birth are not known.

Mary married George Lavender in 1738 in Hagley, Worcestershire.

She had the following children from her marriage to George Lavender:

- Sarah Lavender	born around 1739.
- Elizabeth Lavender	born around 1741.
- Anne Lavender	born around 1744.
- Mary Lavender	born around 1746.
- William Lavender	born around 1748.
- Sarah Lavender	born around 1752.
- Elizabeth Lavender	born around 1755.
- George Lavender	born around 1760.