Donald Frank Martin-Smith [also known as D.F. Martin-Smith] was born in Barnet, Hertfordshire on 6 January 1900. He studied at the Architectural Association Schools in London in the 1920s and subsequently practised as an architect in London. He was elected an Associate of the Royal Institute of British Architects (ARIBA) in 1926 and a Fellow of the Royal Institute of British Architects (FRIBA) in 1945.
In the mid-1930s he was in partnership with (?) Beswick. Together they designed a block of flats in Chelsea, London.
From 1950 until the early 1970s he was in partnership with Henry Braddock (1900-1975) as Braddock & Martin-Smith. Their office was located in the East Gallery of St John’s church in St John’s Wood, London.
Martin-Smith designed several churches, both independently and later in partnership with Braddock. His first church was John Keble Memorial Church at Mill Hill in North London (1935-37) which shows a pronounced Scandinavian influence
A design for a house by Martin-Smith was entered in The "Daily Mail" Ideal Houses Competition for Architects, 1927.
Two architectural drawings by Martin-Smith are illustrated in 'Art and Industry' January 1948 (pp. 12, 13). His address was given as 45, Bloomsbury Square, London in 1927 He died in Poole, Dorset in 1984
‘Obituary’. RIBA Journal vol. 82, April 1975 p. 9