- Layden's first military security pass from Bowman Field, Louisville, Kentucky, issued June 26, 1941 and another card enabling him entry to the local Service Club.
- "Mementoes of Days in Service" details Lawrence Layden's service in World War II from his induction in June 1941, six months before Pearl Harbor, until his formal discharge in December, 1945. Part of the 67th Tactical Reconnaissance Group, Layden's squadron provided aerial reconnaissance for Operation Overlord and the assault on Nazi Germany. Through photos and text, Layden's scrapbook follows him from his initial assignment in Louisville, Kentucky to bases in England and continental Europe. The album contains reconnaissance photos used in the assault on Europe, photographs of Layden at various bases throughout the war and several photographs of Buchenwald concentration camp, visited by Layden six days after its liberation.