Martin Brennan was born 8 Dec 1913, the third child of John & Margaret Brennan at Develeash, Co. Mayo, Ireland.
On 24 May 1950, he married Kathleen Cavanaugh at Our Lady Help of Christians, in London, England.
They had two children:
- Margaret, born 24 May 1950
- Veronica, born 29 Dec 1952
Martin died 26 Jun 1987 in London and is buried at Finchley Cemetery.