Pierre de Crevoisier de Vomécourt, code names Etienne, Lucas, and Sylvain, was an agent of the United Kingdom's clandestine Special Operations Executive during World War II. The purpose of SOE was to conduct espionage, sabotage and reconnaissance in occupied Europe against the Axis powers. SOE agents allied themselves with French Resistance groups and supplied them with weapons and equipment parachuted in from England.

Georges Pierre André Bégué, code named Bombproof, was a French engineer and agent of the United Kingdom's clandestine organization, the Special Operations Executive (SOE). The purpose of SOE in France, occupied by Nazi Germany in World War II, was to conduct espionage, sabotage, and reconnaissance. SOE agents allied themselves with French Resistance groups and supplied them with weapons and equipment parachuted in from England.