Archibald Henry Macdonald Sinclair, 1st Viscount Thurso KT CMG PC (22 October 1890 – 15 June 1970), known as Sir Archibald Sinclair, 4th Baronet from 1912 until 1952, and often as Archie Sinclair, was a Scottish politician and leader of the British Liberal Party.
Sinclair was the son of a Scottish father and an American mother. Educated at Eton College and Sandhurst, he...
