Her fiancé, Jacques Delaunay, a student she had met at Poitiers, who was actively engaged in the French resistance, was shot on the 6th of October 1943 at the fortress of Mont-Valérian, at Suresnes.

In November 1943, Marthe Cohn finished her studies, which she had begun in October 1941 in Poitiers, at the nursing school of the French Red Cross, in Marseille.

[1] She was able to report to her service two major pieces of information: that northwest of Freiburg, the Siegfried Line had been evacuated and where the remnant of the German Army lay in ambush in the Black Forest.

[5] After the war Marthe returned to France to pursue a career as a nurse, but in 1956, while studying in Geneva, she met an American medical student, Major L. Cohn, who was the roommate of a friend.

[7] She was awarded the title of Knight of France's Legion of Honour (Decree Number 2702, MR 2004) by André Bord, the national veterans minister in 2002.

A 2019 film, Chichinette: The Accidental Spy, is about Marthe Cohn's life and was made by writer-director Nicola Alice Hens and produced by Amos Geva.