A Rose for the ANZAC Boys - warning spolier alert

I am still currently reading ‘A Rose for the ANZAC Boys’ and I am around the part where she has become and ambulance driver and she was a chauffeur for a general. She didn’t want to stay the night at a hotel with him when men were dying so she drove to a make-shift hospital made out of tents. She starts to help the wounded by cutting and stripping their clothes for the surgeon. She has the help of a man, whose name I do not know. While trying to sedate a soldier with chloroform he accidently kills him. I will continue reading to find out more.