a book on an NZ female mechanic of WW1

A true story; from the press release:

Gladys Sandford – mechanic, First World War ambulance driver, New Zealand’s first woman pilot and a trailblazer ahead of her time ...

Gladys loves nothing better than tinkering with car engines and driving at top speed. She also dreams of learning to fly a plane. But it’s 1914 and people, especially her mother, keep reminding her that women are not supposed to be adventurous. 

When war comes, Gladys offers her services at the front as an ambulance driver. She receives an infuriating response from the War Office:

‘This will be a short war and women will not be needed. If you want to help the war effort you should stay at home and knit socks and balaclavas.’

But Gladys is not the kind of person who stays home and knits. She is determined to go to war.