Marshall was born on 2 October 1906 and he became a businessman in insurance and banking. In 1939 Marshall joined the Trade Division of the Admiralty and was commissioned in the Royal Navy Volunteer Reserve.
Marshall married Joan Annette Sherry in 1929 and they had one daughter, Joan died in 1952. He married Symons in 1953 and they had a daughter as well as four step-children.
- "Cdr Sir Douglas Marshall". The Times (59791). London. 25 August 1976. p. 14.
- Hansard 1803–2005: contributions in Parliament by Douglas Marshal
|Parliament of the United Kingdom|
| Member of Parliament for Bodmin
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