On Sunday, December 7, 1941, the Japanese bombed Pearl Harbor, and so the United States entered the Second World War. American men from all walks of life rushed to enlist, and not all of them were young, single men. In 1941, Dr. Roscoe S. Yegerlehner had been out of medical school for three years with a growing medical practice in the small northern Indiana town of Kentland. Married for almost thirteen years, he had a loving wife and two young boys. He volunteered to serve in the United States Naval Reserve and accepted a commission as an assistant Surgeon with the rank of Lieutenant (jg) in May 1942. Six months after Pearl Harbor, Dr. Yegerlehner found himself on a crowded train headed towards Norfolk Naval Training Station in Virginia. He would eventually serve in several posts thoughout the South Pacific. During his 18 months of overseas deployment, he and his wife corresponded every day. They lovingly addressed their letters to "Mother" and "Daddy." This is the first volume of their letters.