Major Lionel Guy d'Artois DSO GM (9 April 1917 – 15 March 1999) was a Canadian Army officer and SOE agent.

), and resulted in d'Artois being decorated with the George Medal (GM) alongside flying officer Robert Race.

He served with the Commonwealth occupation forces in Japan, and then did an operational tour with 1st Bn., Royal 22e Régiment, the "Van Doos", during the Korean War.

Assistant Section Officer Sonya Butt, MBE, war heroine, became Mrs. Sonia d'Artois[3] and quietly disappeared from public view to become a wife and mother.

The couple moved to Quebec and raised a family of six children: three boys (Robert, Michel and Guy) and three girls (Nadya, Christina and Lorraine).