The course, at St Albans and Manchester, covered such things as parachuting, management of explosives and unarmed combat as well as basic radio transmission.
Louin was parachuted at night on 6 April 1944 into the Limoges region of France together with Marie-Louise Cloarec, Suzanne Mertzizen and two others.
On the 27 April they were arrested and interrogated by the Gestapo, before being sent in August to Ravensbrück concentration camp, where they discovered Eugénie Djendi.
After their demands to be transferred to a Prisoner of War camp were denied, the four women were executed by firing squad on 18 January 1945 and their bodies burnt and buried in the nearby forest.
Louin was declared "Mort pour la France" and posthumously awarded the Croix de Guerre avec Palme and the Medal of the Resistance.