Wilmot was working in the barracks by 1916. When the war of Independence began in 1919 she began working for the North Kerry Flying Column supplying information on troop movements as well as smuggling arms and ammunition out of the barracks. She also provided information on what the RIC knew about the enemy's movements and plans for arrests. In January 1921 she went to work in the Listowel RIC Barracks and continued her subversive activities. This however brought her under suspicion and she was in danger. As a result the local Flying column leader Denis Quille sent a letter to her threatening her unless she left "Listowel Barracks at once". The threat was taken seriously enough that Wilmot was provided with an armed escort to and from work by the RIC. Wilmot continued to provide arms and information until September 1921 when she was finally dismissed. Patrick McElligott, Comandant of the IRA, said that the local revolutionaries could not have continued their work without her information.