Mary J was born in c. 1871 in Binbrook.

She died on an unknown date in an unknown place.

She was the daughter of William Harness (1835 ‒ unknown).

She was the daughter of Mary Ann Atkinson (c. 1834 ‒ unknown).

She was buried on an unknown date in an unknown place.

She appeared in a census on 02 Apr 1871 in Binbrook.

She appeared in a census on 03 Apr 1881 in Binbrook.

She was the sister of Fanny Harness (1858 ‒ unknown).

She was the sister of Edward Harness (1861 ‒ unknown).

She was the sister of Elizabeth Harness (1863 ‒ unknown).

She was the sister of George T Harness (c. 1866 ‒ unknown).

She was the sister of Amy Harness (1868 ‒ unknown).

She was the sister of Florence Harness (c. 1873 ‒ unknown).

She was the sister of John William Harness (q. Jun 1875 ‒ unknown).