While in France, Thompson completed several cartoons which were published in the army magazine Chronicles of NZEF and in a Christmas publication New Zealand at the Front.
[4] During his convalescence, Thompson made sketches of the medical staff treating him and these were published in a collection called Light Diet which was sold to support the work of New Zealand war artists.
Thompson also attended the Central School of Arts and Crafts and was an engraving finalist for the Prix de Rome prize in 1923.
[2] Thompson was also employed by the National Art Gallery of New Zealand as its London representative and for many years recommended artworks for the Museum to acquire.
[2] In October 1941, the War Artists' Advisory Committee commissioned Thompson to produce three portraits of police and civil defence workers for 10 guineas each.