For the latest information on Mary Williams, the mistress of Robert Colebrooke and mother to many of his children, she married Dr Robert Jones MA of Carmarthen in 1782.
Marriage Bonds and Fiats, 1782. Sep. 9. Robert Jones, doctor of Physyck, and Mrs. Mary Williams, both of the parish of St. Peter, Carmarthen.
Sep. 10 1782. Robert Jones, M.D., and Mrs. Mary Williams. Married in the chapel of Llanllwch. L (Licence). (Note; the Chapel of St Mary, Llanllwch, a chapelry of St Peter Carmathen at that time)
source: The Annual Magazine of the Geneological Society of West Wales Vol. VIII. 1919-20 EDITED BY FRANCIS GREEN CARMARTHEN : PRINTED BY W. SPURRELL & SON 1921.
It is interesting to note that Mary Williams styled herself Mrs, no doubt because she was was mother to many children at the time of this marriage. The marriage at Llanllwch would have been out of the public eye- Robert Colebrooke was still alive, albeit living in exile in France.
Mary died in 1794 “On Wednesday se'nnight (ie Wed 5 Feb 1794) died at Salisbury in the 55th year of her age, Mrs. Mary Jones wife of Robert Jones M. D. of Carmarthen”. Source. Hereford Journal 19 February 1794.
She was buried 6 days later. Wilshire Memorial Inscription Index has:
St Thomas, Salisbury: Mary Jones wife of Robert buried 11 February 1794.
Robert Jones, as is well known, was a "Brunonian" physician who had studied under Dr John Brown (1735/6-1788) at Edinburgh, and gave lectures on this approach to medicine at Salisbury (where he lived in the 1780's and 1790's at Castle Street) and elsewhere, in addition to authoring two books on the subject. He also held his surgeries at Castle Street on Tuesdays and Saturdays, 10am to 3 pm.
Robert Jones rose to infamy when he contradicted the advice of senior doctors at the sickbed of his friend John Braham Isaacson (1759-1826) in 1782, surreptitiously dosing him with Laudanum. The latter survived to become Vicar of Wicken and lived to 67.