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Merioneth (UK Parliament constituency)

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Title: Merioneth (UK Parliament constituency)  
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Subject: History of Merionethshire, Robert Owen (disambiguation), Edward Stanley, Henry Haydn Jones, Edward Herbert, 1st Baron Herbert of Cherbury
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Merioneth (UK Parliament constituency)

Former County constituency
for the House of Commons
Number of members one
Replaced by Clwyd South West and Meirionnydd Nant Conwy

Merioneth, sometimes called Merionethshire, was a constituency in North Wales established in 1542, which returned one Member of Parliament to the House of Commons of the English Parliament, and later to the Parliament of Great Britain and of the United Kingdom. It was abolished for the 1983 general election, when it was largely replaced by the new constituency of Meirionnydd Nant Conwy.


  • History 1
    • Boundaries 1.1
    • Establishment 1.2
    • Franchise and political influences before the Reform Act 1.3
    • Survival as a constituency with low population 1.4
    • Political character after the 1860s 1.5
    • Abolition 1.6
  • Members of Parliament 2
    • MPs 1542–1640 2.1
    • MPs 1640–1983 2.2
    • Notes 2.3
  • Election results 3
    • Elections in the 1910s 3.1
    • Elections in the 1920s 3.2
    • Elections in the 1930s 3.3
    • Elections in the 1940s 3.4
    • Elections in the 1950s 3.5
    • Elections in the 1960s 3.6
    • Elections in the 1970s 3.7
  • References 4
  • Sources 5



The constituency consisted of the historic county of Merionethshire. Merioneth was always an almost entirely rural constituency, rocky and mountainous with grazing the only useful agricultural activity that could be pursued; quarrying was its other main economic mainstay. It was also a strongly Welsh-speaking area (a parliamentary paper in 1904 listed that just 6.2% of the population could only speak English, lower than in any other county in Wales), and by the 19th century was a stronghold of non-conformist religion.


Like the rest of Wales, Merioneth was given the right to representation by the Act of Union 1536, and first returned an MP to the Parliament of 1542; however, unlike all the other Welsh counties, Merioneth had no towns sufficiently important in the 16th century to merit borough status, so the county MP was its only representative. The MP was chosen by the first past the post electoral system - when there was a contest at all, which was almost unheard of before the second half of the 19th century.

Franchise and political influences before the Reform Act

As in other county constituencies, the franchise until 1832 was defined by the Forty Shilling Freeholder Act, which gave the right to vote to every man who possessed freehold property within the county valued at £2 or more per year for the purposes of land tax; it was not necessary for the freeholder to occupy his land, nor even in later years to be resident in the county at all. Nevertheless, the electorate was small, probably only a few hundred, though the lack of contested elections make it impossible to be sure: at the 1774 election, the only one to go to a poll in the 18th century, exactly 600 votes were cast. By way of comparison, the population at the time of the 1831 census was about 34,500.

For more than a century before the Reform Act, Merioneth's representation was almost entirely monopolised by the Vaughan family of Corsygedol - they and the Wynns of Wynnstay, who supported them, were the two leading families of the county and the expense of a contested election was presumably seen as futile by any potential opposition candidates. When a magnate from outside the county, The Earl of Powis, did intervene in 1774, his candidate was roundly defeated. Since the Vaughans were not aligned with any of the great aristocratic interests of the rest of Wales, and were generally regarded as maintaining their independence, there was little partisan interest in dislodging them.

Survival as a constituency with low population

Although the franchise was somewhat extended under the Great Reform Act, Merioneth's registered electorate at the first post-Reform election was only 580. However, it seems that this considerably under-represented those who were eligible, and more voters could be induced to register by vigorous campaigning. The Liberation Society, a body aiming to maximise the non-conformist vote to achieve disestablishment of the church, was active in Merioneth and a number of other Welsh counties in the 1850s and 1860s, and between the elections of 1859 and 1865 Merioneth's electorate rose by 50%, from 1,091 to 1,527. But there was also a dramatic rise in the electorate between 1835 and 1837 (from 698 to 1,336), which is less easy to explain. Nevertheless, even with these occasional peaks, Merioneth was a small constituency by Welsh - let alone English - standards.

By the time of the 1911 census, the population of Merioneth was 46,849, and in other circumstances it would have been too small to survive as a separate constituency, but the physical geography meant that the inconvenience which would be caused to voters and MPs alike by combining it with a neighbouring county outweighed any arguments for mathematical equality of representation. In 1929, the first election at which all adult men and women had the vote, Merioneth's electorate was under 29,000, and it had fallen even further (to 27,619) by the time of the final (1979) election before the constituency was abolished, even with the extension of the franchise to 18-21 year olds in the 1960s.

Political character after the 1860s

The gentry returned unopposed as MPs in Merioneth's deferential days had often been Conservatives, but with the introduction of competitive party politics, Merioneth became one of the safest Liberal seats in Wales - mainly the effect of the high number of workers in the slate and limestone quarries round Ffestiniog and Corwen. With the foundation of the Labour Party, the seat became less safe, but the Liberals held it through the first half of the 20th century, losing it to Labour for the first time only in 1951 and remaining the main challengers for most of the next twenty years. However, with the emergence of Plaid Cymru as a political force, Merioneth was natural territory for the nationalists: they overtook the Liberals for second place behind Labour in 1970, and then captured the seat at the February 1974 election, one of the first two seats the party had won at a general election. They retained it comfortably in October 1974 and 1979.


The constituency was finally abolished with effect from the 1983 general election, when the alignment of constituency boundaries with the revised Welsh county boundaries necessitated a change. The Boundary Commission's original proposals would have united Merioneth with English-speaking Conwy on the North Wales coast, and would almost certainly have extinguished Plaid Cymru's chances of holding the seat, but after a public enquiry much more modest changes were adopted. The bulk of the electorate formed the core of the new Meirionnydd Nant Conwy constituency, joined by only around 5,000 voters from outside the old county, while about 3,000 voters in that part of Merionethshire which had been placed in Clwyd rather than Gwynedd moved to the new Clwyd South West constituency.

Members of Parliament

MPs 1542–1640

Parliament Member
1542 Edward Stanley [1]
1545 Rhys Vaughan [1]
1547 Lewis ap Owen [1]
1553 (Mar) Lewis ap Owen [1]
1553 (Oct) John Salesbury [1]
1554 (Apr) Lewis ap Owen [1]
1554 (Nov) Lewis ap Owen [1]
1558 Ellis Price [1]
1559 (Jan) John Wyn ap Cadwaladr[2]
1563 (Jan) Ellis Price [2]
1571 Hugh Owen [2]
1572 John Lewis Owen [2]
1584 (Nov) Cadwaladr Price [2]
1586 Robert Lloyd [2]
1588 (Nov) Robert Salusbury [2]
1593 Griffith Nanney [2]
1597 (Sep) Thomas Myddelton [2]
1601 (Oct) Robert Lloyd [2]
1604-1611 Sir Edward Herbert
1614 Ellis Lloyd
1621-1622 William Salisbury
1624 Henry Wynn
1625 Henty Wynn
1626 Edward Vaughan
1628-1629 Richard Vaughan
1629–1640 No Parliaments convened

MPs 1640–1983

Year Member Party
April 1640 Henry Wynn
November 1640 William Price Royalist
February 1644 Price disabled from sitting - seat vacant
1646 Roger Pope
1647 John Jones
1653 Merioneth was not represented in the Barebones Parliament
1654 John Vaughan
1656 Colonel John Jones [3]
January 1659 Lewis Owen
May 1659 Merioneth was not represented in the restored Rump [4]
April 1660 Edmund Meyricke
1661 Henry Wynn
1673 William Price
1679 Sir John Wynn
1681 Sir Robert Owen
1685 Sir John Wynn
1695 Hugh Nanney
1701 Richard Vaughan
1734 William Vaughan Independent
1768 John Pugh Pryse
1774 Evan Lloyd Vaughan
1792 Sir Robert Williames Vaughan Tory
1836 Richard Richards Conservative
1852 William Watkin Edward Wynne Conservative
1865 William Robert Maurice Wynne Conservative
1868 David Williams Liberal
1870 Samuel Holland Liberal
1885 Henry Robertson Liberal
1886 Thomas Edward Ellis Liberal
1899 Owen Morgan Edwards Liberal
1900 Sir Osmond Williams Liberal
Jan 1910 Sir Henry Haydn Jones Liberal
1945 Emrys Roberts Liberal
1951 Thomas William Jones Labour
1966 Will Edwards Labour
Feb 1974 Dafydd Elis Thomas Plaid Cymru
1983 constituency abolished: see Meirionnydd Nant Conwy


  1. ^ a b c d e f g h "History of Parliament". Retrieved 2011-08-30. 
  2. ^ a b c d e f g h i j "History of Parliament". Retrieved 2011-08-30. 
  3. ^ Jones, brother-in-law of Oliver Cromwell, was summoned to the new Upper House for the second session of the Parliament, but no replacement as Merioneth's MP was elected
  4. ^ Although Jones was still alive in 1659, he is not listed as one of those who sat as a member of the restored Rump

Election results

Elections in the 1910s

General Election 1918:[1]
Party Candidate Votes % ±%
Liberal Henry Haydn Jones unopposed n/a n/a
Liberal hold Swing n/a

Elections in the 1920s

General Election 1922[2]
Party Candidate Votes % ±%
Liberal Henry Haydn Jones 9,903 n/a
Labour John Jones Roberts 7,070 n/a
Majority n/a
Turnout n/a
Liberal hold Swing n/a
General Election 1923: Merioneth [3]
Party Candidate Votes % ±%
Liberal Henry Haydn Jones 11,005 60.5 +2.2
Labour John Jones Roberts 7,181 39.5 +2.2
Majority 3,824 21.0 +4.4
Turnout 80.2 +3.1
Liberal hold Swing +2.2
General Election 1924[4]
Party Candidate Votes % ±%
Liberal Henry Haydn Jones 9,228 47.8
Labour John Jones Roberts 6,393 33.1
Conservative Robert Vaughan 3,677 19.1 n/a
Majority 2,835 14.7
Turnout 19,298 83.9
Liberal hold Swing
General Election 1929: Merioneth [5]
Party Candidate Votes % ±%
Liberal Henry Haydn Jones 11,865 48.3 +0.5
Labour John Jones Roberts 7,980 32.5 -0.6
Conservative Charles Phibbs 4,731 19.3 +0.2
Majority 3,885 15.8 +1.1
Turnout 24,576 85.2 +1.3
Liberal hold Swing +0.6

Elections in the 1930s

General Election 1931[6]
Party Candidate Votes % ±%
Liberal Henry Haydn Jones 9,756 40.8
Labour Rev J H Howard 7,807 32.6
Conservative Charles Phibbs 6,372 26.6
Majority 1,949 8.1
Turnout 23,935 82.6
Liberal hold Swing
General Election 1935[7]
Party Candidate Votes % ±%
Liberal Henry Haydn Jones 9,466
Labour Thomas William Jones 8,317
Conservative Charles Phibbs 5,868
Majority 1,149
Liberal hold Swing

A General election was due to take place before the end of 1940, but was postponed due to the Second World War. By the Autumn of 1939, the following candidates had been selected to contest this constituency;

Elections in the 1940s

General Election, 5–12 July 1945[8]
Party Candidate Votes % ±%
Liberal Sq-Ldr. Emrys Owen Roberts 8,495 35.8
Labour H Morris Jones 8,383 35.4
Conservative C P Hughes 4,374 18.5
Plaid Cymru Richard Gwynfor Evans 2,448 10.3
Majority 112 0.4
Turnout 82.2
Liberal hold Swing

Elections in the 1950s

General Election, 23 February 1950[9]
Party Candidate Votes % ±%
Liberal Emrys Owen Roberts 9,647 38.8
Labour O Parry 8,577 34.5
Conservative John Francis Williams-Wynne 4,374 18.5
Plaid Cymru Richard Gwynfor Evans 2,754 11.0
Majority 1,070 4.3
Turnout 88.8
Liberal hold Swing
General Election, 25 October 1951[10]
Party Candidate Votes % ±%
Labour Thomas William Jones 10,505 43.0
Liberal Emrys Owen Roberts 9,457 38.6
Conservative William Geraint Oliver Morgan 4,505 18.4
Majority 1,048 4.3
Turnout 87.3
Labour gain from Liberal Swing
General Election 1955[10]
Party Candidate Votes % ±%
Labour Thomas William Jones 9,056 38.3
Liberal Henry Evans Jones 6,374 26.9
Plaid Cymru Richard Gwynfor Evans 5,243 22.1
Liberal National John V Jenkins 3,001 12.7
Majority 2,682 11.3
Turnout 23,674
Labour hold Swing
General Election 1959[10]
Party Candidate Votes % ±%
Labour Thomas William Jones 9,095 40.7
Liberal Benjamin G Jones 8,119 36.3
Plaid Cymru Richard Gwynfor Evans 5,127 23.0
Majority 976 4.4
Turnout 22,341
Labour hold Swing

Elections in the 1960s

General Election 1964[10]
Party Candidate Votes % ±%
Labour Thomas William Jones 8,420 38.37
Liberal Richard O Jones 7,171 32.68
Plaid Cymru Dafydd Elystan Morgan 3,697 16.85
Conservative A E Campbell L Jones-Lloyd 2,656 12.10
Majority 1,249 5.69
Turnout 21,944 83.15
Labour hold Swing
General Election 1966[10]
Party Candidate Votes % ±%
Labour William Henry Edwards 9,628 44.17
Liberal Edward Gwyn Jones 7,733 35.47
Plaid Cymru Ieuan Lewis Jenkins 2,490 11.42
Conservative A E Campbell L Jones-Lloyd 1,948 8.94
Majority 1,895 8.69
Turnout 21,799 85.84
Labour hold Swing

Elections in the 1970s

General Election 1970[10]
Party Candidate Votes % ±%
Labour William Henry Edwards 8,861 39.76
Plaid Cymru Dafydd Wigley 5,425 24.34
Liberal Emlyn Thomas 5,034 22.59
Conservative D Elgan H Edwards 2,965 13.30
Majority 3,436 15.42
Turnout 22,285 84.24
Labour hold Swing
General Election February 1974[10]
Party Candidate Votes % ±%
Plaid Cymru Dafydd Elis-Thomas 7,823 34.61
Labour William Henry Edwards 7,235 32.01
Liberal IAE Jones 4,153 18.37
Conservative RR Owen 3,392 15.01
Majority 588 2.60
Turnout 22,603 85.26
Plaid Cymru gain from Labour Swing
General Election October 1974[10]
Party Candidate Votes % ±%
Plaid Cymru Dafydd Elis-Thomas 9,543 42.49
Labour William Henry Edwards 6,951 30.95
Liberal Richard O Jones 3,454 15.38
Conservative RR Owen 2,509 11.17
Majority 2,592 11.54
Turnout 22,457 84.02
General Election 1979[10]
Party Candidate Votes % ±%
Plaid Cymru Dafydd Elis-Thomas 9,275 40.82
Conservative Robert Lambart Harvey 5,365 23.61
Labour RH Jones 5,332 23.46
Liberal JH Parsons 2,752 12.11
Majority 3,910 17.21
Turnout 22,724 83.39


  1. ^ British parliamentary election results, 1918-1949, FWS Craig
  2. ^ British parliamentary election results, 1918-1949, FWS Craig
  3. ^ Etholiadau'r ganrif 1885-1997, Beti Jones
  4. ^ British parliamentary election results, 1918-1949, FWS Craig
  5. ^ British Parliamentary Election Results 1918-1949, FWS Craig
  6. ^ British parliamentary election results, 1918-1949, FWS Craig
  7. ^ British parliamentary election results, 1918-1949, FWS Craig
  8. ^
  9. ^
  10. ^ a b c d e f g h i


  • The BBC/ITN Guide to the New Parliamentary Constituencies (Chichester: Parliamentary Research Services, 1983)
  • Cobbett's Parliamentary history of England, from the Norman Conquest in 1066 to the year 1803 (London: Thomas Hansard, 1808) [1]
  • Matthew Cragoe, Culture, Politics, and National Identity in Wales 1832-1886 (Oxford: Oxford University Press, 2004)
  • F W S Craig, British Parliamentary Election Results 1832-1885 (2nd edition, Aldershot: Parliamentary Research Services, 1989)
  • F W S Craig, British Parliamentary Election Results 1918-1949 (Glasgow: Political Reference Publications, 1969)
  • Lewis Namier & John Brooke, The History of Parliament: The House of Commons 1754-1790 (London: HMSO, 1964)
  • J E Neale, The Elizabethan House of Commons (London: Jonathan Cape, 1949)
  • Henry Pelling, Social Geography of British Elections 1885-1910 (London: Macmillan, 1967)
  • J Holladay Philbin, Parliamentary Representation 1832 - England and Wales (New Haven: Yale University Press, 1965)
  • Robert Waller, The Almanac of British Politics (1st edition, London: Croom Helm, 1983)
  • Leigh Rayment's Historical List of MPs – Constituencies beginning with "M" (part 2)
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