Career
Lefebvre was also an outspoken monarchist who ran a spy-ring for British Intelligence when Tourcoing was occupied by the Imperial German Army during World War I.
Later, during World World War II, when Nazi Germany occupied France, he resumed this work, smuggling soldiers and escaped prisoners to un-occupied France and London. He was arrested and sentenced to death in Berlin on 28 May 1942 for "complicity with the enemy and recruitment of young people to bear arms against the Greater German Reich". He was sent to KZ Sonnenburg, a former prison converted into a concentration camp, mainly holding Communist and Social Democrat activists.
Lefebvre died in Sonnenburg after one year of sufferings and privations.
His body has never been recovered. On July 16, 1953, Lefebvre was posthumously decorated by the French government with the Médaille militaire for his active participation in the resistance movement.
Lefebvre was married to Gabrielle Wattin, who died in 1938.
