She, together with her friend Elsie Knocker, won numerous medals for bravery and for saving the lives of thousands of soldiers on the Western Front in Belgium.
As a teen, she witnessed her older brother, Uailean, who owned a Royal Enfield 425cc motorcycle, competing at rallies and at the Bournemouth speed trials.
She was just 18 years old when, while roaring round the Hampshire and Dorset lanes, she met thirty-year-old Elsie Knocker, a divorcee and mother of a young son.
Initially quartered at Ghent, the unit relocated to Veurne at the end of October where the women worked tirelessly, picking up wounded soldiers mid-way from the front and transporting them back to their field hospital at the rear.
In November, they decided to leave the corps and set up their own dressing station five miles east in a town named Pervijze, north of Ypres, just one hundred yards from the trenches.
No longer affiliated with the Belgian Red Cross, they began acting completely as free agents and had to support their work by raising their own funds.
In January 1915, they were both decorated by King Albert I of Belgium with the Order of Léopold II, Knights Cross (with palm)[5] for their courageous work on the front lines.
In 1916, Chisholm became engaged to a Royal Naval Air pilot named Jack Petrie, who died a year later during flying practice.
[10] Her final move was to Cnoc an Fhurain, Rhugarbh, Barcaldine, Argyll, where she, May, "Bird" Partridge and "John" Johnstone, ran a poultry farm for decades.
The photographs are a valued source of information as they give a candid portrayal of the wartime experiences of Chisholm and Knocker in contrast to the official photos of the period, which tend to avoid scenes that might challenge the 'official' account of the war.