Twigg-Smith was born, the third of four children, in Nelson, New Zealand to Frederick Charles Smith (1847 - 1905) and Alice Madeline Smith (née Thomas) (1858 - 1884).
Twigg-Smith was born, the third of four children, in Nelson, New Zealand to Frederick Charles Smith (1847 - 1905) and Alice Madeline Smith (née Thomas) (1858 - 1884).