[1] Graduating from his course as a flight lieutenant with a permanent commission, Dalton-Morris served as the signals officer with No.

[1] After a tour of duty at the Marine Aircraft Experimental Establishment at RAF Felixstowe, Dalton-Morris returned to the Electrical and Wireless School as an instructor in 1935.

[1] In 1935 Dalton-Morris attended the RAF Staff College at Andover, Hampshire, received a promotion to squadron leader and in 1938 he was sent to No.

[1] The same year as the Second World War started, Dalton-Morris was appointed the Deputy Chief Signals Officer at the headquarters of Fighter Command at RAF Bentley Priory.

[1] He served as the Deputy Chief Signals Officer at Bomber Command's headquarters at RAF High Wycombe.