It was while she was in London that she made contact with the Free French rebels. Emmanuel d'Astier de La Vigerie, a prominent figure in the resistance, heard Marly sing the Chant des Partisans in Russian when he visited London in 1943.
During her time in London, she connected with the Free French rebels.  Emmanuel d'Astier de La Vigerie, a key member of the resistance movement, was informed of her presence by her singing of the Chant des Partisans in Russian when he visited London in 1943.