[3] Thompson was hired as a chauffeur for the Women's Social and Political Union, and drove Emmeline Pankhurst on her national tour in 1909.

[4] In 1916 she was second in command to Lilian Franklin on the first expedition in support of the British Army (the FANY had previously assisted the Belgians and the French).

[1] She was mentioned in dispatches on 9 April 1917 and by 1 January 1918 was appointed officer commanding a new joint FANY–Voluntary Aid Detachment convoy based at St Omer near the front line, which became part of the British Second Army on 4 May 1918.

The unit was awarded sixteen military medals and three Croix de Guerre for their work that night and their coolness and courage under fire.

[1] On 29 March 1915 she was awarded the Knight's Cross of the Order of Leopold II, by King Albert for evacuating wounded Belgian soldiers under fire near Diksmuide.

Thompson was also awarded the Military Medal and the Croix de Guerre for courage under fire while moving injured during bombing raid in May 1918.