Archibald Sinclair, 1st Viscount Thurso

The Right Honourable The Viscount Thurso KT CMG PC
Archibald Sinclair as Secretary of State for Air during World War II
Leader of the Liberal Party
In office 26 November 1935 – 26 July 1945
Deputy	Percy Harris (1940–1945)
Preceded by	Herbert Samuel
Succeeded by	Clement Davies
Secretary of State for Air
In office 11 May 1940 – 23 May 1945
Monarch	George VI
Prime Minister	Winston Churchill
Preceded by	Sir Samuel Hoare, Bt
Succeeded by	Harold Macmillan
Deputy Leader of the Liberal Party
In office 4 November 1931 – 26 November 1935
Leader	Herbert Samuel
Preceded by	Herbert Samuel
Succeeded by	Percy Harris 1940–1945
Secretary of State for Scotland
In office 25 August 1931 – 28 September 1932
Monarch	George V
Prime Minister	Ramsay MacDonald
Preceded by	William Adamson
Succeeded by	Sir Godfrey Collins
Liberal Chief Whip
In office 1930 – 25 August 1931
Leader	David Lloyd George
Preceded by	Robert Hutchison
Succeeded by	Goronwy Owen
Member of the House of Lords Lord Temporal
In office 7 July 1954[1] – 15 June 1970 Hereditary Peerage
Preceded by	Peerage created
Succeeded by	The 2nd Viscount Thurso
Member of Parliament for Caithness and Sutherland
In office 15 November 1922 – 5 July 1945
Preceded by	Leicester Harmsworth
Succeeded by	Eric Gandar Dower
Personal details
Born	Archibald Henry Macdonald Sinclair 22 October 1890 (1890-10-22) Chelsea, London, England or Caithness, Scotland
Died	15 June 1970 (1970-06-16) (aged 79) Twickenham, London, England
Political party	Liberal
Spouse	Marigold Forbes ​ ​ (m. 1918)​
Alma mater	Royal Military College, Sandhurst
Signature

Archibald Henry Macdonald Sinclair, 1st Viscount Thurso, KT, CMG, PC (22 October 1890 – 15 June 1970), known as Sir Archibald Sinclair between 1912 and 1952, and often as Archie Sinclair, was a British politician and leader of the Liberal Party.^[2]