The Abertillery by-election of 30 November 1950 was held after the death of Labour MP George Daggar.
The seat was very safe, having been won at the United Kingdom general election, 1950 by over 25,000 votes[1]
| General Election 1950: Abertillery | |||||
|---|---|---|---|---|---|
| Party | Candidate | Votes | % | ±% | |
| Labour | G Daggar | 29,609 | 87.05 | ||
| Conservative | OJ Lewis | 4,403 | 12.95 | ||
| Majority | 25,206 | 74.11 | - | ||
Llywelyn Williams held the subsequent by-election seeing his vote share increase by just over half of one percent, whilst his Conservative opponent share decreased by the same amount[2]
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