Mary Whistance was the daughter of John Whistance and Elizabeth Orme.

Mary was born in 1853 in Walsall, Staffordshire.

Mary married James Agger in 1876 in Salford, Lancashire.

She had the following children from her marriage to James Agger:

- Harry Agger	born in 1877 at West Bromwich, Staffordshire.
- Elizabeth Maria Agger	born in 1879 at West Bromwich, Staffordshire.
- Arthur Agger	born in 1880 at West Bromwich, Staffordshire.
- Ernest Agger	born in 1881 at West Bromwich, Staffordshire.
- Ada Agger	born in 1883 at West Bromwich, Staffordshire.
- Bertie Samuel Agger	born in 1892 at West Bromwich, Staffordshire.

Details of Mary's death are not known.

Census Data:

Year	Address
1861	Cock Street, Darlaston, Staffordshire.
1871	Cock Street, Darlaston, Staffordshire.
1881	66 Green Street, West Bromwich, Staffordshire.
1891	26, Arthur Street, West Bromwich, Staffordshire.
1901	109, Sams Lane, West Browmwich, Staffordshire.