With a woman's unit in Serbia, Salonika and Sebastopol.

Hutton, a physician who specialized in mental and nervous disorders, began working with the Scottish Women’s Hospitals, a voluntary organisation established by her older colleague Elsie Inglis, in 1915 first in France, and then in the east, where she ran field hospitals, eventually accompanying the Serbian army in its advance in 1918. Hutton was awarded the Order of the White Eagle, Serbia's highest award.