He was elected at the 1929 general election as Member of Parliament (MP) for the safe Labour seat of Abertillery in Monmouthshire, Wales. He represented the constituency in the House of Commons until his death at the age of 70, in Bedwellty, eight months after being returned to Parliament for the fifth time at the 1950 general election. At the time he was vice-chairman of his party.
- Craig, F. W. S. (1983) . British parliamentary election results 1918-1949 (3rd ed.). Chichester: Parliamentary Research Services. ISBN 0-900178-06-X.
- Leigh Rayment's Historical List of MPs
|Parliament of the United Kingdom|
| Member of Parliament for Abertillery
|Trade union offices|
| Agent for the Monmouth Western Valleys District of the South Wales Miners' Federation
W. J. Saddler
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