Interesting addition to Sarah's death...
Bu 1798/01/12 (Malone) She was murdered by John Thornhill (by whom she was with child) & thrown into the Mill Dam. Body was found on 8th. Thornhill committed to Chester Castle on a strong Suspicion. Arraigned on 20th of April and after a trial of 14 hours was convicted upon the strongest presumptive Evidence. Executed on the 23rd. When at the gallows & not til then he acknowledged himself guilty. He was Servant to Revd Mr. Archdeacon Leigh, Rector of Lymme.
Seems to be quite a few books on the subject.
The Evidence on the Trial of John Thornhill, for the Murder of Sarah Statham, at Lymm, in Cheshire for Which He Was Executed, at Chester, on Monday the Twenty-Third of April, 1798 with Some Particulars of His Behaviour: