The Member’s grandfather, William ap John Thomas, was the first to break with the tradition of patronymic naming practice and his son, John, inherited the settled family name of Jones.
Despite his own family contacts, Jones’s return to the 1614 Parliament as a knight for Monmouthshire was probably secured by his links with Edward Somerset, 4th earl of Worcester. From at least 1608 Jones served as steward on some of the earl’s manors around Raglan, and as lord lieutenant of Monmouthshire, Worcester later procured Jones’s appointment as one of his deputies. Jones’s social status may suffice to explain these preferments, but his religious sympathies may also have helped his cause: in the 1624 Parliament he was presented as a recusant officeholder because of his wife’s Catholicism.
In the 1614 Parliament Jones was probably entrusted with supporting the bill for an endowment of a school and almshouses for Monmouth made by a Haberdasher namesake - he later corresponded with the Company clerk over this bequest.
After the Parliament, Jones rebuilt the family house at Treowen and continued to be active in Monmouthshire local government.
