Sonja Davies nasceu o 11 de novembro de 1923 na Nova Zelândia. Era autora e foi conhecida pelo seu trabalho em Bread & Roses (1993). Foi casada com Charlie Davies. Morreu o 12 de junho de 2005 na Nova Zelândia.
She outlived both of her children; her daughter Penny (whose father was
a US Marine who was killed in action before she was born), succumbed to
motor neurone disease, aged 50; her second child, Mark (from her
marriage to trades unionist Charlie Davies) was killed in a tunnelling
accident in 1978.