Eileen May Collingwood was born in Kensington, Middlesex, England, on 14 December 1907. Her parents were Edward Gordon Collingwood and May Collingwood, nee Raw. She was married to Charles Alfred Rolfe Gibb in the Cathedral of the Holy Trinity in Shanghai, China. In about 1935 was she married to Frederick Anson Firth and in October 1943 to Alexander Robert Blair. She died in Stroud, Gloucestershire, England, on 29 September 1998.