He was born in King Street, Carmarthen, the son of a solicitor. Educated at Eton College and Christ Church, Oxford, he went on to Lincoln's Inn to qualify as a barrister. His work on the South Wales circuit took him back to his home area, and he stood as a Conservative at the election of 1812. In 1815, he replaced Sir Thomas Picton as MP for Pembroke Boroughs. In 1818 he was again defeated at Carmarthen, but eventually won the seat three years later.
In 1831, he was injured in rioting at Carmarthen during the general election. The voting was called off, and the election for the constituency had to be re-run in August, when Jones retained the seat. Later that year he fought a duel with another politician, Robert Fulke Greville. Despite voting in favour of the Reform Bill, he was defeated in the 1832 general election. From 1837 to 1841 he was MP for Carmarthenshire. His efforts to have the salt tax abolished earned him the nickname "Jones yr Halen" ("Jones the Salt").
- Welsh Biography Online
- Leigh Rayment's Historical List of MPs
- Craig, F. W. S. (1989) . British parliamentary election results 1832–1885 (2nd ed.). Chichester: Parliamentary Research Services. p. 521. ISBN 0-900178-26-4.
- Hansard 1803–2005: contributions in Parliament by John Jones
|Parliament of the United Kingdom|
John Frederick Campbell
| Member of Parliament for Carmarthen
1821 – 1832
Sir James Hamlyn-Williams, Bt.
| Member of Parliament for Carmarthenshire
1837 – 1842
With: George Rice-Trevor