"Sgt. Doyle D. Copus, son of Mrs. C. A. Copus, McKinney. Graduate of McKinney High School. Entered Army in 1943. Received training at Camp Hoon, California as radioman in Anti-Aircraft. Has served in Pacific area since Jan. 1945."
“Doyle D. Copus,” McKinney Public Library Digital History, accessed September 27, 2023, https://mckinneylibrary.omeka.net/items/show/596.