Birkett1900–1980Ad ve SoyadlarBertha BirkettZaman ÇizelgesiBirth1900Death1980İlişkilerÇocuklarDixon (1930–1990)Dixon (1940–1940)KardeşlerBirkett (1890–1970)Birkett (1880–1930)Birkett (1880–1960)Birkett (1890–1950)William Birkett (1896–1911)Birkett (1890–1960)Birkett (1900–1980)EbeveynlerGilbert Birkett (1866–?)Charlotte Davies (1869–?)Kaynaklarwikitree Birkett-218