Mary Hill married Abraham Bouneau in 1777 and Rebekah Hill was a witness to the marriage of Abraham's third daughter, Margaret, to James Simmons.

It is tempting to suppose that the two are related but I haven't been able to find evidence of this.

Mary and Hill are both common names so I have not been able to trace Mary Hill's parentage with any certainty. There are about 20 possible baptisms in Tower Hamlets alone.