query: Who was first commander of the Royal Observer Corps?
passage: Royal Observer Corps
In 1929 the control of the Observer Corps passed from the county police forces to the Air Ministry, although Chief Constables retained responsibility for personnel and recruitment matters. 1 March 1929 saw the establishment of the new Headquarters of the Observer Corps at Hillingdon House, RAF Uxbridge in the west of London, and Air Commodore Edward A D Masterman CB CMG CBE AFC RAF (Rtd) was appointed as the first commandant of the Observer Corps. Air Cdre Masterman held this appointment until his retirement on 1 March 1936, and was succeeded by Air Commodore Alfred Warrington-Morris CG CMG OBE AFC RAF (Rtd), who would lead the Observer Corps through the critical period during the Second World War which saw the RAF emerge bruised but victorious following the Battle of Britain of 1940.
passage: Royal Observer Corps
During the 1930s the number of groups increased until by 1936, England had a full coverage of observation posts south-east of a line between Flamborough Head in Yorkshire and Poole Harbour in Dorset. (In 1936 the Headquarters of the Observer Corps relocated from RAF Uxbridge to RAF Bentley Priory in north-west London). By 1939 a system of observation posts covered practically the whole of Great Britain, with the western parts of Wales and Scotland together with England's West Country incorporated during 1940. The final group, Portree in the Western Isles, formed in 1941.