Cridlan was awarded the Military Medal in September 1918, for her conduct during an air raid on strategically important Marquise aerodrome near Boulogne-sur-Mer where she was stationed. The site, which was used to receive newly delivered planes and repair damaged military aircraft, was bombed and strafed over several hours. Five and a half tonnes of bombs were dropped, 27 aircraft burnt and 46 damaged. The RAF sustained heavy casualties, with 46 personnel killed. Cridlan evidently found her experiences on that night distressing, not wishing to discuss the event and paraphrased in her obituary as saying, "never again would she see a harvest moon without seeing other things besides".
