United Kingdom (civil flag), 1930s proposal
Civil Defence Service, 1943-1945 (top)
National Fire Service, 1943-1948 (middle)
Western Australia Fire and Rescue Service, since 1979 (bottom)
Sir Gerald Wollaston was a British herald who was of the opinion that the Union Jack was strictly a royal flag, and that there needed to be an equivalent of the civilian red ensign for use on land. His idea was a flag divided into blue and white quarters with a Union Jack in the top left.
In 1943, Wollaston was called on to create flags for two new wartime agencies: the Civil Defence Service and the National Fire Service. He reused his old civil flag idea with different colours and some added badges. The organizations were dissolved after the end of the war and their flags were retired.
Some 30 years later, long after Wollaston had died, the Western Australia Fire and Rescue Service went searching for a flag in advance of its sesquicentennial celebrations. Assistant Chief Officer Noel Stephens hit on the idea of combining the Western Australia blue ensign with the old NFS flag, which he mistakenly thought had red in the bottom right corner instead of blue. The flag was approved
(designers: Gerald Woods Wollaston, Noel Stephens)