# South Londonderry (Northern Ireland Parliament constituency)

54°50′17″N 6°53′49″W﻿ / ﻿54.838°N 6.897°W﻿ / 54.838; -6.897
The South Londonderry constituency for the Parliament of Northern Ireland was created in 1929 and continued until the abolition of the Parliament in 1973. All members for the constituency were from the Chichester-Clark family: the first was both the son-in-law of the second and the father of the third.
Dehra Parker had been elected (as Dehra Chichester) for County Londonderry in the 1921 and 1925 elections under the single transferable vote; she became a Dame before the 1953 election. Her grandson James Dawson Chichester-Clark was Prime Minister of Northern Ireland from 1969–1971 and after his resignation was created Baron Moyola in 1971. All three elected members were not only from the same party, but were close relations, as were the penultimate member of the South Londonderry constituency for the Westminster parliament in 1922 and the Westminster MP for Londonderry from 1955 to 1972.

## Members of Parliament

| Election | Member | Party |
| 1929 | James Lenox-Conyngham Chichester-Clark | Ulster Unionist |
| 1933 | Dehra Parker | Ulster Unionist |
| 1933 | Dehra Parker | Ulster Unionist |
| 1938 | Dehra Parker | Ulster Unionist |
| 1945 | Dehra Parker | Ulster Unionist |
| 1949 | Dehra Parker | Ulster Unionist |
| 1953 | Dehra Parker | Ulster Unionist |
| 1958 | Dehra Parker | Ulster Unionist |
| 1960 | James Chichester-Clark | Ulster Unionist |
| 1962 | James Chichester-Clark | Ulster Unionist |
| 1965 | James Chichester-Clark | Ulster Unionist |
| 1969 | James Chichester-Clark | Ulster Unionist |
| 1973 | Constituency abolished | Constituency abolished |

## Elections

The elections in this constituency took place using the first past the post electoral system.
1929 Northern Ireland general election: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | James Lenox-Conyngham Chichester-Clark | Unopposed | N/A | N/A |
Following the death of Chichester-Clark:
By-election 15 March 1933: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | Dehra Parker | Unopposed | N/A | N/A |
| | UUP hold | UUP hold | Swing | N/A | |
1933 Northern Ireland general election: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | Dehra Parker | Unopposed | N/A | N/A |
| | UUP hold | UUP hold | Swing | N/A | |
1938 Northern Ireland general election: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | Dehra Parker | Unopposed | N/A | N/A |
| | UUP hold | UUP hold | Swing | N/A | |
1945 Northern Ireland general election: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | Dehra Parker | Unopposed | N/A | N/A |
| | UUP hold | UUP hold | Swing | N/A | |
1949 Northern Ireland general election: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | Dehra Parker | 9,193 | 60.9 | N/A |
| | Nationalist | T. B. Agnew | 5,909 | 39.1 | New |
| Majority | Majority | Majority | 3,284 | 21.8 | N/A |
| Turnout | Turnout | Turnout | 15,102 | 86.2 | N/A |
| | UUP hold | UUP hold | Swing | N/A | |
1953 Northern Ireland general election: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | Dehra Parker | Unopposed | N/A | N/A |
| | UUP hold | UUP hold | Swing | N/A | |
1958 Northern Ireland general election: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | Dehra Parker | Unopposed | N/A | N/A |
| | UUP hold | UUP hold | Swing | N/A | |
Following the resignation of Parker:
By-election 9 July 1960: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | James Dawson Chichester-Clark | Unopposed | N/A | N/A |
| | UUP hold | UUP hold | Swing | N/A | |
1962 Northern Ireland general election: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | James Dawson Chichester-Clark | Unopposed | N/A | N/A |
| | UUP hold | UUP hold | Swing | N/A | |
1965 Northern Ireland general election: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | James Dawson Chichester-Clark | Unopposed | N/A | N/A |
| | UUP hold | UUP hold | Swing | N/A | |
1969 Northern Ireland general election: South Londonderry :
| Party | Party | Candidate | Votes | % | ±% |
| | UUP | James Dawson Chichester-Clark | 9,195 | 61.3 | N/A |
| | People's Democracy | Bernadette Devlin | 5,812 | 38.7 | New |
| Majority | Majority | Majority | 3,383 | 22.6 | N/A |
| Turnout | Turnout | Turnout | 15,007 | 81.6 | N/A |
| | UUP hold | UUP hold | Swing | N/A | |