The Boivin family worked in co-operation with Lucienne Mulette (niece of Marie) & Simone Ledru, sheltering and feeding airmen. On 21 October 1943, Mulette and Ledru passed on two airmen, Ellis Klein and John DesRochers (USAAF), to the Boivin's, where they stayed until 3 November 1943.

At the end of December 1943 Donald Ogilvie and Bruce Kilmer (USAAF) were staying with Lucienne Mulette & Simone Ledru, when the Germans began their search of Fismes. Ogilvie and Kilmer evaded capture. There are two slightly different versions of this event:

• Denise Boivin and Simone Ledru managed to get Ogilvie and Kilmer to Reims. Denise recorded this event as 8th January 1944, but it's generally thought to have occurred on or soon after 31st December 1943. In Reims, they were sheltered for two nights by one of Denise's sisters, whose fiancé (René Masset) then escorted them into the Ardennes.
• on 31st December 1943, Gilberte Gobert, another sister of Simone, drove Ogilvie, Kilmer and Simone to Mme. Boussard, an aunt, in Villemoyenne, Fère-en-Tardenois (~50kms WSW of Reims). Simone stayed with them for ten days. Ogilvie and Kilmer remained there for about six weeks.

Mme. Boivin was arrested on 28th April 1944 and taken to Romainville. She was deported to Ravensbrück on 21st June 1944, where she died on 10 Feb 1945. Her husband was arrested at the same time, but released on 21st May 1944.

Note: some of the arrests in Fismes were the work of Roland Jeunet who had sent a letter to the Gestapo on the 14th January 1944. This was intercepted and then copied by Mlle Boivin (it is not known which one), an employee of the post office in Fismes. In this letter Roland denounced among others, his future sister-in-law Raymonde Beuré and offered his services to the Gestapo.