# Pembrokeshire (UK Parliament constituency)

Pembrokeshire (Welsh: Sir Benfro) was a parliamentary constituency based on the county of Pembrokeshire in Wales. It returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom, elected by the first past the post system.

## History

The Laws in Wales Act 1535 (26 Hen. 8. c. 26) provided for a single county seat in the House of Commons for each of twelve historic Welsh counties (including Pembrokeshire) and two for Monmouthshire. Using the modern year, starting on 1 January, these parliamentary constituencies were authorised in 1536. In practice, the first known Knights of the Shire from Wales (as Members of Parliament from county constituencies were known before the nineteenth century) may not have been elected until 1545.
The Act contains the following provision, which had the effect of enfranchising the shire of Pembroke.
   And that for this present Parliament, and all other Parliaments to be holden and kept for this Realm, one Knight shall be chosen and elected to the same Parliaments for every of the Shires of Brecknock, Radnor, Mountgomery and Denbigh, and for every other Shire within the said Country of Dominion of Wales;

### Before the Reform Act

During the late eighteenth and early nineteenth century the representation of the county was subject to a series of contests between the Owen family of Orielton, who supported the Whig interest, and the Philipps family of Picton Castle.

### The Great Reform Act to the First World War

During this period the seat was largely held by the Conservatives who held off the Liberal challenge which was so apparent in other parts of Wales. When Lord Emlyn inherited the title Earl of Cawdor in 1860 the seat was held until 1866 by George Lort Phillips. He was succeeded by James Bevan Bowen of Llwyngwair who stood down in favour of Sir John Scourfield in 1868. Scourfield died in 1876 and Bowen once again became the county member. In 1880, however, he was defeated by William Davies and the Liberals held the seat until 1918.

### The Twentieth Century

The constituency was abolished for the 1997 general election, when its territory was divided between the new constituencies of Preseli Pembrokeshire and Carmarthen West & South Pembrokeshire. Up to 1950 it was generally considered a Liberal seat, although won by the Conservatives on some occasions. From 1950 it was regarded as a fairly safe Labour seat. However, the Conservatives won the seat in 1970 when the sitting Labour MP Desmond Donnelly left the party and formed The Democratic party. Donnelly lost the seat but polled well. In subsequent elections the Conservative vote held up, tending to suggest that Donnelly had held the seat with large majorities for Labour based on his own popularity as much as being the Labour candidate.

## Boundaries

The constituency was established with the boundaries of the county of Pembrokeshire, but by the time of abolition Fishguard and Northern Pembrokeshire had been joined to the neighbouring Cardigan (UK Parliament constituency) constituency to form Ceredigion and Pembroke North, which was captured by Plaid Cymru in 1992. This left Pembrokeshire with the major towns of Haverfordwest, Milford Haven, Pembroke Dock and Tenby.

## Members of Parliament
### MPs 1545–1601

| Parliament | Member |
| 1542 | Thomas Jones |
| 1545 | John Wogan |
| 1547 | Sir Thomas Jones |
| 1553 (Mar) | ? |
| 1553 (Oct) | Sir John Wogan |
| 1554 (Apr) | Arnold Butler |
| 1554 (Nov) | Arnold Butler |
| 1555 | ?Richard Cornwall |
| 1558 | Thomas Cathern |
| 1559 (Jan) | William Philipps |
| 1562–1563 | Sir John Perrot |
| 1571 | John Wogan |
| 1572 | William Philipps, died 1573, replaced 1576 by John Wogan , died 1581, replaced 1584 by Sir Thomas Perrot |
| 1584 (Nov) | Thomas Revell |
| 1586 | Thomas Revell |
| 1588 (Oct) | George Devereux |
| 1593 | Sir Thomas Perrot |
| 1597 (Sep) | Sir Gelly Meyrick |
| 1601 | John Philipps |

### MPs 1601–1832

| Election | Member | Party |
| 1604 | Alban Stepney | |
| 1614 | Sir John Wogan | |
| 1620 | Sir John Wogan | |
| 1624 | Sir James Perrott | |
| 1625 | Sir John Wogan | |
| 1626 | Sir John Wogan | |
| 1628 | Sir John Wogan | |
| 1640 (Apr) | Sir John Wogan | |
| 1640 (Nov) | Sir John Wogan, died 1644 replaced by ? | |
| 1645 | Arthur Owen | |
| 1648 | ? | |
| 1653 | Not represented in Barebones Parliament | |
| 1654 | Sir Erasmus Philipps, 3rd Baronet Arthur Owen | |
| 1656 | James Philipps John Clark | |
| 1659 | Sir Erasmus Philipps, 3rd Baronet | |
| 1660 | Arthur Owen | Whig |
| 1678 | John Owen | Whig |
| 1679 | Sir Hugh Owen, Bt | Whig |
| 1681 | William Wogan | Tory |
| 1685 | William Barlow | Tory |
| 1689 | Sir Hugh Owen, Bt | Whig |
| 1695 | Sir Arthur Owen, Bt | Whig |
| 1705 | Wirriot Owen | Whig |
| 1710 | John Barlow | Tory |
| 1715 | Sir Arthur Owen, Bt | |
| 1727 | John Campbell | |
| 1747 | Sir William Owen, Bt | |
| 1761 | Sir John Philipps, Bt | |
| 1765 | Sir Richard Philipps, Bt | |
| 1770 | Sir Hugh Owen, Bt | |
| 1786 | The Lord Milford | Whig |
| 1812 | Sir John Owen, Bt | Tory |

### MPs 1832–1997

| Election | Member | Party |
| 1832 | Sir John Owen | Tory |
| 1841 | Lord Emlyn | Conservative |
| 1861 b-e | George Lort Phillips | Conservative |
| 1866 b-e | James Bevan Bowen | Conservative |
| 1868 | Sir John Scourfield | Conservative |
| 1876 b-e | James Bevan Bowen | Conservative |
| 1880 | William Davies | Liberal |
| 1892 | William Rees-Davies | Liberal |
| 1898 b-e | John Philipps | Liberal |
| 1908 b-e | Walter Roch | Liberal |
| 1918 | Sir Evan Davies Jones | Coalition Liberal |
| 1922 | Gwilym Lloyd George | National Liberal |
| 1923 | Gwilym Lloyd George | Liberal |
| 1924 | Charles Price | Unionist |
| 1929 | Gwilym Lloyd George | Liberal |
| 1950 | Desmond Donnelly | Labour |
| 1968 | Desmond Donnelly | Independent |
| 1969 | Desmond Donnelly | Democratic Party |
| 1970 | Nicholas Edwards | Conservative |
| 1987 | Nicholas Bennett | Conservative |
| 1992 | Nick Ainger | Labour |
| 1997 | constituency abolished | constituency abolished |

## Elections
### Elections in the 1830s

General election 1830: Pembrokeshire :
| Party | Party | Candidate | Votes | % |
| | Tory | John Owen | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | >3,000 | |
| | Tory hold | Tory hold | Tory hold | Tory hold |
General election 1831: Pembrokeshire :
| Party | Party | Candidate | Votes | % |
| | Tory | John Owen | 1,949 | 51.3 |
| | Whig | Robert Fulke Greville | 1,850 | 48.7 |
| Majority | Majority | Majority | 99 | 2.6 |
| Turnout | Turnout | Turnout | 3,799 | |
| Registered electors | Registered electors | Registered electors | >3,000 | |
| | Tory hold | Tory hold | Tory hold | Tory hold |
Owen's elected was declared void on petition, causing a by-election.
By-election, 24 October 1831: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Tory | John Owen | 1,531 | 51.8 | +0.5 |
| | Whig | Robert Fulke Greville | 1,423 | 48.2 | −0.5 |
| Majority | Majority | Majority | 108 | 3.6 | +1.0 |
| Turnout | Turnout | Turnout | 2,954 | | |
| Registered electors | Registered electors | Registered electors | >3,000 | | |
| | Tory hold | Tory hold | Swing | +0.5 | |
General election 1832: Pembrokeshire :
| Party | Party | Candidate | Votes | % |
| | Tory | John Owen | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 3,700 | |
| | Tory hold | Tory hold | Tory hold | Tory hold |
General election 1835: Pembrokeshire :
| Party | Party | Candidate | Votes | % |
| | Conservative | John Owen | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 3,664 | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
General election 1837: Pembrokeshire :
| Party | Party | Candidate | Votes | % |
| | Conservative | John Owen | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 3,706 | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold |

### Elections in the 1840s

General election 1841: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | John Campbell | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 3,663 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
General election 1847: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | John Campbell | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 3,479 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |

### Elections in the 1850s

General election 1852: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | John Campbell | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 3,132 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
General election 1857: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | John Campbell | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 2,784 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
General election 1859: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | John Campbell | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 2,700 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |

### Elections in the 1860s

Campbell succeeded to the peerage, becoming Earl Cawdor and causing a by-election.
By-election, 19 January 1861: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | George Lort Phillips | 1,194 | 54.9 | N/A |
| | Liberal | Hugh Owen | 979 | 45.1 | New |
| Majority | Majority | Majority | 215 | 9.8 | N/A |
| Turnout | Turnout | Turnout | 2,173 | 77.4 | N/A |
| Registered electors | Registered electors | Registered electors | 2,809 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
General election 1865: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | George Lort Phillips | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 3,797 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
Phillips' death caused a by-election.
By-election, 26 November 1866: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | James Bevan Bowen | Unopposed | Unopposed | Unopposed |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
General election 1868: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | John Scourfield | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 4,690 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |

### Elections in the 1870s

General election 1874: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | John Scourfield | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 4,621 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
Scourfield's death caused a by-election.
1876 Pembrokeshire by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | James Bevan Bowen | 1,882 | 53.9 | N/A |
| | Liberal | William Davies | 1,608 | 46.1 | New |
| Majority | Majority | Majority | 274 | 7.8 | N/A |
| Turnout | Turnout | Turnout | 3,490 | 76.9 | N/A |
| Registered electors | Registered electors | Registered electors | 4,621 | | |
| | Conservative hold | Conservative hold | Swing | N/A | |

### Elections in the 1880s

General election 1880: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Davies | 2,185 | 55.7 | N/A |
| | Conservative | Charles Philipps | 1,737 | 44.3 | N/A |
| Majority | Majority | Majority | 448 | 11.4 | N/A |
| Turnout | Turnout | Turnout | 3,922 | 77.6 | N/A |
| Registered electors | Registered electors | Registered electors | 5,052 | | |
| | Liberal gain from Conservative | Liberal gain from Conservative | Swing | N/A | |
General election 1885: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Davies | 4,999 | 57.2 | +1.5 |
| | Conservative | Charles Philipps | 3,738 | 42.8 | −1.5 |
| Majority | Majority | Majority | 1,261 | 14.4 | +3.0 |
| Turnout | Turnout | Turnout | 8,737 | 80.3 | +2.7 |
| Registered electors | Registered electors | Registered electors | 10,883 | | |
| | Liberal hold | Liberal hold | Swing | +1.5 | |
General election 1886: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Davies | 4,099 | 50.7 | −6.5 |
| | Conservative | Charles Philipps | 3,983 | 49.3 | +6.5 |
| Majority | Majority | Majority | 116 | 1.4 | −13.0 |
| Turnout | Turnout | Turnout | 8,082 | 74.3 | −6.0 |
| Registered electors | Registered electors | Registered electors | 10,883 | | |
| | Liberal hold | Liberal hold | Swing | −6.5 | |

### Elections in the 1890s

General election 1892: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Rees-Davies | 4,800 | 56.5 | +5.8 |
| | Conservative | Charles Philipps | 3,701 | 43.5 | −5.8 |
| Majority | Majority | Majority | 1,099 | 13.0 | +11.6 |
| Turnout | Turnout | Turnout | 8,501 | 78.0 | +3.7 |
| Registered electors | Registered electors | Registered electors | 10,895 | | |
| | Liberal hold | Liberal hold | Swing | +5.8 | |
General election 1895: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Rees-Davies | 4,550 | 53.4 | −3.1 |
| | Conservative | Arthur Picton Saunders-Davies | 3,970 | 46.6 | +3.1 |
| Majority | Majority | Majority | 580 | 6.8 | −6.2 |
| Turnout | Turnout | Turnout | 8,520 | 76.6 | −1.4 |
| Registered electors | Registered electors | Registered electors | 11,119 | | |
| | Liberal hold | Liberal hold | Swing | −3.1 | |
Davies resigned after being appointed Attorney general of the Bahamas, requiring a by-election.
1898 Pembrokeshire by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Philipps | 5,070 | 59.8 | +6.4 |
| | Conservative | Hugh Campbell | 3,406 | 40.2 | −6.4 |
| Majority | Majority | Majority | 1,664 | 19.6 | +12.8 |
| Turnout | Turnout | Turnout | 8,476 | 76.6 | 0.0 |
| Registered electors | Registered electors | Registered electors | 11,061 | | |
| | Liberal hold | Liberal hold | Swing | +6.4 | |

### Elections in the 1900s

General election 1900: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Philipps | Unopposed | Unopposed | Unopposed |
| | Liberal hold | Liberal hold | Liberal hold | Liberal hold | Liberal hold |
General election 1906: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Philipps | 5,886 | 69.3 | N/A |
| | Conservative | John Lort-Williams | 2,606 | 30.7 | New |
| Majority | Majority | Majority | 3,280 | 38.6 | N/A |
| Turnout | Turnout | Turnout | 8,492 | 75.0 | N/A |
| Registered electors | Registered electors | Registered electors | 11,322 | | |
| | Liberal hold | Liberal hold | Swing | N/A | |
1908 Pembrokeshire by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Walter Roch | 5,465 | 62.4 | −6.9 |
| | Conservative | John Lort-Williams | 3,293 | 37.6 | +6.9 |
| Majority | Majority | Majority | 2,172 | 24.8 | −13.8 |
| Turnout | Turnout | Turnout | 8,758 | 77.3 | +2.3 |
| Registered electors | Registered electors | Registered electors | 11,331 | | |
| | Liberal hold | Liberal hold | Swing | −6.9 | |

### Elections in the 1910s

General election January 1910: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Walter Roch | 6,135 | 65.1 | −4.2 |
| | Conservative | Edward Marlay Samson | 3,291 | 34.9 | +4.2 |
| Majority | Majority | Majority | 2,844 | 30.2 | −8.4 |
| Turnout | Turnout | Turnout | 9,426 | 80.2 | +5.2 |
| Registered electors | Registered electors | Registered electors | 11,750 | | |
| | Liberal hold | Liberal hold | Swing | −4.2 | |
General election December 1910: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Walter Roch | 5,682 | 65.5 | +0.4 |
| | Conservative | Edward Marlay Samson | 2,989 | 34.5 | −0.4 |
| Majority | Majority | Majority | 2,693 | 31.0 | +0.8 |
| Turnout | Turnout | Turnout | 8,671 | 73.8 | −6.4 |
| Registered electors | Registered electors | Registered electors | 11,750 | | |
| | Liberal hold | Liberal hold | Swing | +0.4 | |
General Election 1914–15:
Another General Election was required to take place before the end of 1915. The political parties had been making preparations for an election to take place and by July 1914, the following candidates had been selected;
* Liberal: Walter Roch
* Unionist: Edward Marlay Samson
General election 1918: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| C | Liberal | Evan Davies Jones | 19,200 | 69.8 | +4.3 |
| | Labour | Ivor Gwynne | 7,712 | 28.0 | New |
| | Christian Socialist | Griffith Bowen Thomas | 597 | 2.2 | New |
| Majority | Majority | Majority | 11,488 | 41.8 | +10.8 |
| Turnout | Turnout | Turnout | 27,509 | 64.3 | −9.5 |
| Registered electors | Registered electors | Registered electors | 42,808 | | |
| | Liberal hold | Liberal hold | Swing | | |
| C indicates candidate endorsed by the coalition government. ||||||

### Elections in the 1920s

General election 1922: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | National Liberal | Gwilym Lloyd George | 21,569 | 69.0 | N/A |
| | Labour | William James Jenkins | 9,703 | 31.0 | +3.0 |
| Majority | Majority | Majority | 11,866 | 38.0 | N/A |
| Turnout | Turnout | Turnout | 31,272 | 71.7 | +7.4 |
| Registered electors | Registered electors | Registered electors | 43,631 | | |
| | National Liberal gain from Liberal | National Liberal gain from Liberal | Swing | N/A | |
General election 1923: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Gwilym Lloyd George | 13,173 | 38.3 | −30.7 |
| | Unionist | Charles Price | 11,682 | 34.0 | New |
| | Labour | William James Jenkins | 9,511 | 27.7 | −3.3 |
| Majority | Majority | Majority | 1,491 | 4.3 | −33.7 |
| Turnout | Turnout | Turnout | 34,366 | 77.9 | +6.2 |
| Registered electors | Registered electors | Registered electors | 44,134 | | |
| | Liberal hold | Liberal hold | Swing | −13.7 | |
General election 1924: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Unionist | Charles Price | 14,575 | 40.4 | +6.4 |
| | Liberal | Gwilym Lloyd George | 13,045 | 36.2 | −2.1 |
| | Labour | William James Jenkins | 8,455 | 23.4 | −4.3 |
| Majority | Majority | Majority | 1,530 | 4.2 | N/A |
| Turnout | Turnout | Turnout | 36,075 | 80.2 | +2.3 |
| Registered electors | Registered electors | Registered electors | 44,980 | | |
| | Unionist gain from Liberal | Unionist gain from Liberal | Swing | +4.3 | |
General election 1929: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Gwilym Lloyd George | 19,050 | 41.8 | +5.6 |
| | Unionist | Charles Price | 14,235 | 31.3 | −9.1 |
| | Labour | William James Jenkins | 12,235 | 26.9 | +3.5 |
| Majority | Majority | Majority | 4,815 | 10.5 | N/A |
| Turnout | Turnout | Turnout | 45,520 | 83.8 | +3.6 |
| Registered electors | Registered electors | Registered electors | 54,302 | | |
| | Liberal gain from Unionist | Liberal gain from Unionist | Swing | +7.4 | |

### Elections in the 1930s

General election 1931: Pembrokeshire :
| Party | Party | Candidate | Votes | % |
| | Liberal | *Gwilym Lloyd George | 24,606 | 55.71 |
| | Conservative | Charles Price | 19,560 | 44.29 |
| Majority | Majority | Majority | 5,046 | 11.42 |
| Turnout | Turnout | Turnout | 44,166 | 79.88 |
| | Liberal hold | Liberal hold | Swing | |
* opposed to National Government.
General election 1935: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Gwilym Lloyd George | 16,734 | 37.41 | |
| | Conservative | George Edmund Allison | 15,660 | 35.01 | |
| | Labour | William James Jenkins | 12,341 | 27.59 | New |
| Majority | Majority | Majority | 1,074 | 2.40 | |
| Turnout | Turnout | Turnout | 44,735 | 79.13 | |
| | Liberal hold | Liberal hold | Swing | | |

### Elections in the 1940s

General election 1939–40: Another general election was required to take place before the end of 1940. The political parties had been making preparations for an election to take place from 1939 and by the end of this year, the following candidates had been selected;
* Liberal: Gwilym Lloyd George
* Labour: William James Jenkins
General election 1945: Pembrokeshire :
| Party | Party | Candidate | Votes | % |
| | Liberal | *Gwilym Lloyd George | 22,997 | 50.18 |
| | Labour | Wilfred Fienburgh | 22,829 | 49.82 |
| Majority | Majority | Majority | 168 | 0.36 |
| Turnout | Turnout | Turnout | 45,826 | 72.29 |
| | Liberal hold | Liberal hold | Swing | |
* Supported the National Government. The Liberal Party had left the war coalition.

### Elections in the 1950s

General election 1950: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Desmond Donnelly | 25,550 | 50.1 | +1.3 |
| | National Liberal | Gwilym Lloyd George | 25,421 | 49.9 | N/A |
| Majority | Majority | Majority | 129 | 0.2 | N/A |
| Turnout | Turnout | Turnout | 50,971 | 83.2 | +10.9 |
| | Labour gain from Liberal | Labour gain from Liberal | Swing | | |
General election 1951: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Desmond Donnelly | 25,994 | 48.4 | −1.7 |
| | Conservative | Frederick Farey-Jones | 16,968 | 31.6 | −18.3 |
| | Liberal | Dyfrig Hughes Pennant | 10,688 | 19.9 | New |
| Majority | Majority | Majority | 9,026 | 16.8 | +16.6 |
| Turnout | Turnout | Turnout | 53,650 | 86.0 | +2.8 |
| | Labour hold | Labour hold | Swing | | |
General election 1955: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Desmond Donnelly | 27,002 | 51.5 | +3.1 |
| | Independent | William L. Davies | 25,410 | 48.5 | New |
| Majority | Majority | Majority | 1,592 | 3.0 | −13.8 |
| Turnout | Turnout | Turnout | 52,412 | 84.0 | −2.0 |
| | Labour hold | Labour hold | Swing | | |
General election 1959: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Desmond Donnelly | 27,623 | 52.9 | +1.4 |
| | Conservative | Henry Graham Partridge | 22,301 | 42.8 | New |
| | Plaid Cymru | Waldo Williams | 2,253 | 4.3 | New |
| Majority | Majority | Majority | 5,322 | 10.1 | +7.1 |
| Turnout | Turnout | Turnout | 52,177 | 83.6 | −0.4 |
| | Labour hold | Labour hold | Swing | | |

### Elections in the 1960s

General election 1964: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Desmond Donnelly | 23,926 | 47.23 | |
| | Conservative | Henry Graham Partridge | 15,340 | 30.28 | |
| | Liberal | Alan Coulthard | 9,679 | 19.11 | New |
| | Plaid Cymru | Dyfrig Thomas | 1,717 | 3.39 | |
| Majority | Majority | Majority | 8,586 | 16.95 | |
| Turnout | Turnout | Turnout | 50,662 | 81.46 | |
| | Labour hold | Labour hold | Swing | | |
General election 1966: Pembrokeshire :
| Party | Party | Candidate | Votes | % |
| | Labour | Desmond Donnelly | 23,852 | 48.15 |
| | Conservative | Francis Michael Fisher | 17,921 | 36.17 |
| | Liberal | Owain Glyn Williams | 5,308 | 10.71 |
| | Plaid Cymru | Jack Sheppard | 2,460 | 4.97 |
| Majority | Majority | Majority | 5,931 | 11.98 |
| Turnout | Turnout | Turnout | 49,541 | 79.76 |
| | Labour hold | Labour hold | Swing | |

### Elections in the 1970s

General election 1970: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Nicholas Edwards | 19,120 | 34.73 | |
| | Labour | Gordon Parry | 17,889 | 32.49 | |
| | Democratic Party | Desmond Donnelly | 11,824 | 21.48 | New |
| | Plaid Cymru | Wynne Samuel | 3,681 | 6.69 | |
| | Liberal | David Wynford Thomas | 3,541 | 4.62 | |
| Majority | Majority | Majority | 1,231 | 2.24 | N/A |
| Turnout | Turnout | Turnout | 56,145 | 77.85 | |
| | Conservative gain from Labour | Conservative gain from Labour | Swing | | |
General election February 1974: Pembrokeshire :
| Party | Party | Candidate | Votes | % |
| | Conservative | Nicholas Edwards | 22,268 | 38.25 |
| | Labour | Gordon Parry | 20,789 | 35.71 |
| | Liberal | Patrick Edwin Charles Jones | 12,340 | 21.20 |
| | Plaid Cymru | R. B. Davies | 2,820 | 4.84 |
| Majority | Majority | Majority | 1,479 | 2.54 |
| Turnout | Turnout | Turnout | 58,217 | 81.44 |
| | Conservative hold | Conservative hold | Swing | |
General election October 1974: Pembrokeshire :
| Party | Party | Candidate | Votes | % |
| | Conservative | Nicholas Edwards | 23,190 | 40.47 |
| | Labour | Gordon Parry | 22,418 | 39.12 |
| | Liberal | Patrick Edwin Charles Jones | 9,116 | 15.91 |
| | Plaid Cymru | R. B. Davies | 2,580 | 4.50 |
| Majority | Majority | Majority | 772 | 1.35 |
| Turnout | Turnout | Turnout | 57,304 | 79.53 |
| | Conservative hold | Conservative hold | Swing | |
General election 1979: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Nicholas Edwards | 30,483 | 49.16 | |
| | Labour | Alan Evans | 23,015 | 37.11 | |
| | Liberal | Richard Livsey | 6,249 | 10.08 | |
| | Plaid Cymru | R. Dawe | 1,573 | 2.54 | |
| | Ecology | B. Kingzett | 694 | 1.12 | New |
| Majority | Majority | Majority | 7,468 | 12.05 | |
| Turnout | Turnout | Turnout | 62,014 | 81.31 | |
| | Conservative hold | Conservative hold | Swing | | |

### Elections in the 1980s

General election 1983: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Nicholas Edwards | 24,860 | 46.88 | |
| | Labour | Alan Griffiths | 15,504 | 29.23 | |
| | SDP | John Pullin | 10,983 | 20.71 | |
| | Plaid Cymru | Osi Rhys Osmond | 1,073 | 2.02 | |
| | Ecology | David Hoffman | 478 | 0.90 | |
| | Independent | G. S. Phillips | 136 | 0.26 | New |
| Majority | Majority | Majority | 9,356 | 17.65 | |
| Turnout | Turnout | Turnout | 53,034 | 76.12 | |
| | Conservative hold | Conservative hold | Swing | | |
General election 1987: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Nicholas Bennett | 23,314 | 41.0 | −5.9 |
| | Labour | Bryan Rayner | 17,614 | 31.0 | +1.8 |
| | Liberal | Patrick Jones | 14,832 | 26.1 | +5.4 |
| | Plaid Cymru | Osi Rhys Osmond | 1,119 | 1.9 | −0.1 |
| Majority | Majority | Majority | 5,700 | 10.0 | −6.6 |
| Turnout | Turnout | Turnout | 56,879 | 80.8 | +2.7 |
| | Conservative hold | Conservative hold | Swing | | |

### Elections in the 1990s

General election 1992: Pembrokeshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Nick Ainger | 26,253 | 43.3 | +12.3 |
| | Conservative | Nicholas Bennett | 25,498 | 42.0 | +1.0 |
| | Liberal Democrats | Peter Berry | 6,625 | 10.9 | −15.2 |
| | Plaid Cymru | Conrad L. Bryant | 1,627 | 2.7 | +0.8 |
| | Green | Roger W. Coghill | 484 | 0.8 | New |
| | Anti-Federalist League | R. M. Stoddart | 158 | 0.3 | New |
| Majority | Majority | Majority | 755 | 1.3 | N/A |
| Turnout | Turnout | Turnout | 60,645 | 82.9 | +2.1 |
| | Labour gain from Conservative | Labour gain from Conservative | Swing | +5.6 | |