# Llandaff and Barry (UK Parliament constituency)

Llandaff and Barry was a county constituency centred on the towns of Llandaff and Barry in Wales. It returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom.
The constituency was created for the 1918 general election. Initial proposals were to call the division "Llandaff" but there was opposition from local representatives of Barry and Glamorgan. The constituency was abolished for the 1950 general election.

## Boundaries

The Urban District of Barry, and the Rural District of Llandaff and Dinas Powis..

## Members of Parliament

| Election | Election | Member | Party |
| | 1918 | Sir William Cope | Conservative |
| | 1929 | Charles Lloyd | Labour |
| | 1931 | Patrick Munro | Conservative |
| | 1942 by-election | Cyril Lakin | Conservative |
| | 1945 | Lynn Ungoed-Thomas | Labour |
| 1950 | 1950 | constituency abolished | constituency abolished |

## Elections
### Elections in the 1910s

General election 1918: Llandaff and Barry :
| Party | Party | Candidate | Votes | % | ±% |
| C | Unionist | William Cope | 13,307 | 62.0 | |
| | Labour | Russell Lowell Jones | 6,607 | 30.8 | |
| | Independent | Charles Frederick Gilborne Sixsmith | 1,539 | 7.2 | |
| Majority | Majority | Majority | 6,700 | 31.2 | |
| Turnout | Turnout | Turnout | 21,453 | 63.0 | |
| | Unionist win (new seat) | Unionist win (new seat) | Unionist win (new seat) | Unionist win (new seat) | Unionist win (new seat) |
| C indicates candidate endorsed by the coalition government. ||||||

### Elections in the 1920s

General election 1922: Llandaff and Barry :
| Party | Party | Candidate | Votes | % | ±% |
| | Unionist | William Cope | 13,129 | 44.1 | −17.9 |
| | Labour | James Lovat-Fraser | 9,031 | 30.4 | −0.4 |
| | Liberal | John Claxton Meggitt | 7,577 | 25.5 | New |
| Majority | Majority | Majority | 4,098 | 13.7 | −17.5 |
| Turnout | Turnout | Turnout | 29,737 | 76.8 | +13.8 |
| | Unionist hold | Unionist hold | Swing | -8.7 | |
General election 1923: Llandaff and Barry :
| Party | Party | Candidate | Votes | % | ±% |
| | Unionist | William Cope | 11,050 | 37.9 | −6.2 |
| | Liberal | Elfyn Williams David | 10,213 | 35.1 | +9.6 |
| | Labour | Thomas F. Worrall | 7,871 | 27.0 | −3.4 |
| Majority | Majority | Majority | 837 | 2.8 | −10.9 |
| Turnout | Turnout | Turnout | 29,134 | 72.1 | −4.7 |
| | Unionist hold | Unionist hold | Swing | -7.9 | |
General election 1924: Llandaff and Barry :
| Party | Party | Candidate | Votes | % | ±% |
| | Unionist | William Cope | 15,801 | 46.8 | +8.9 |
| | Labour | Charles Lloyd | 11,609 | 34.3 | +7.3 |
| | Liberal | Elfyn Williams David | 6,389 | 18.9 | −16.2 |
| Majority | Majority | Majority | 4,192 | 12.5 | +9.7 |
| Turnout | Turnout | Turnout | 33,799 | 80.2 | +8.1 |
| | Unionist hold | Unionist hold | Swing | | |
General election 1929: Llandaff and Barry :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Charles Lloyd | 21,468 | 40.8 | +6.5 |
| | Unionist | William Cope | 18,799 | 35.7 | −11.1 |
| | Liberal | Ewan Davies | 12,352 | 23.5 | +4.6 |
| Majority | Majority | Majority | 2,669 | 5.1 | N/A |
| Turnout | Turnout | Turnout | 52,619 | 82.5 | +2.3 |
| | Labour gain from Unionist | Labour gain from Unionist | Swing | | |

### Elections in the 1930s

General election 1931: Llandaff and Barry :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Patrick Munro | 33,590 | 60.7 | +25.0 |
| | Labour | Charles Lloyd | 21,767 | 39.3 | +15.8 |
| Majority | Majority | Majority | 11,823 | 21.4 | N/A |
| Turnout | Turnout | Turnout | 55,357 | 81.8 | −0.7 |
| | Conservative gain from Labour | Conservative gain from Labour | Swing | | |
General election 1935: Llandaff and Barry :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Patrick Munro | 29,099 | 51.2 | −9.5 |
| | Labour | Charles Lloyd | 27,677 | 48.7 | +9.4 |
| Majority | Majority | Majority | 1,422 | 2.5 | −18.9 |
| Turnout | Turnout | Turnout | 56,776 | 77.0 | −4.8 |
| | Conservative hold | Conservative hold | Swing | | |
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 and by the Autumn of 1939, the following candidates had been selected;
* Conservative: Patrick Munro
* Labour: Lynn Ungoed-Thomas

### Elections in the 1940s

1942 Llandaff and Barry by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Cyril Lakin | 19,408 | 56.9 | +5.7 |
| | Independent Socialist | Kim Mackay | 13,753 | 40.3 | New |
| | Independent Welsh Nationalist | Rolle Malcolm Ritson Paton | 975 | 2.9 | New |
| Majority | Majority | Majority | 5,655 | 16.6 | +14.1 |
| Turnout | Turnout | Turnout | 34,136 | 41.5 | −35.5 |
| | Conservative hold | Conservative hold | Swing | | |
General election 1945: Llandaff and Barry :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Lynn Ungoed-Thomas | 33,706 | 47.5 | −1.2 |
| | Conservative | Cyril Lakin | 27,108 | 38.2 | −13.0 |
| | Liberal | Morgan Edward Bransby-Williams | 10,132 | 14.3 | New |
| Majority | Majority | Majority | 6,598 | 9.3 | N/A |
| Turnout | Turnout | Turnout | 70,946 | 73.8 | −3.2 |
| | Labour gain from Conservative | Labour gain from Conservative | Swing | | |