Kirk Douglas went to Notre Dame and was a midshipman during college. He joined the US Navy in 1942 and served as a communications officer with ant-sub operations in the Pacific. He was attacked by a Japanese destroyer and received medical discharge in
Claude Stanley Choules was the last remaining combat veteran of The First World War. He joined the navy at 14 and had a 41 year military career. He published his first book at 108 years old. He was 110 when he passed away.