F. W. Winterbotham
Overview
 
Frederick William Winterbotham (1897–1990) was a British
Great Britain
Great Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...

 Royal Air Force
Royal Air Force
The Royal Air Force is the aerial warfare service branch of the British Armed Forces. Formed on 1 April 1918, it is the oldest independent air force in the world...

 officer (latterly a Group Captain
Group Captain
Group captain is a senior commissioned rank in the Royal Air Force and the air forces of many other Commonwealth countries. It ranks above wing commander and immediately below air commodore...

) who during World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 supervised the distribution of Ultra
Ultra
Ultra was the designation adopted by British military intelligence in June 1941 for wartime signals intelligence obtained by "breaking" high-level encrypted enemy radio and teleprinter communications at the Government Code and Cypher School at Bletchley Park. "Ultra" eventually became the standard...

 intelligence
Military intelligence
Military intelligence is a military discipline that exploits a number of information collection and analysis approaches to provide guidance and direction to commanders in support of their decisions....

. Later, Winterbotham published the first popular account of Ultra
Ultra
Ultra was the designation adopted by British military intelligence in June 1941 for wartime signals intelligence obtained by "breaking" high-level encrypted enemy radio and teleprinter communications at the Government Code and Cypher School at Bletchley Park. "Ultra" eventually became the standard...

.
Winterbotham enlisted in the Royal Gloucestershire Hussars
Royal Gloucestershire Hussars
The Royal Gloucestershire Hussars was a unit of the British Army.Raised in 1795 following William Pitt's 1794 order to raise volunteer bodies of men to defend Great Britain, through various re-organisations, the Royal Gloucestershire Hussars remain today on the establishment of the Territorial...

 Yeomanry at the start of the war. He later transferred to the Royal Flying Corps
Royal Flying Corps
The Royal Flying Corps was the over-land air arm of the British military during most of the First World War. During the early part of the war, the RFC's responsibilities were centred on support of the British Army, via artillery co-operation and photographic reconnaissance...

, and became a fighter pilot. He was shot down and captured on 13 July 1917, and spent the rest of the war as a POW.
Winterbotham took a law degree, but had no liking for an office job.
 
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