When Francis Julian Hauhn was born on 19 May 1846, in Bentonville, Fayette, Indiana, United States, his father, Henry R. Hauhn, was 28 and his mother, Gulielma Pleas, was 24. He married Phebe Jane Klingler on 13 September 1868, in Zionsville, Boone, Indiana, United States. They were the parents of at least 2 sons and 4 daughters. He lived in Milton, Wayne, Indiana, United States in 1880 and Indianapolis, Marion, Indiana, United States for about 20 years. He registered for military service in 1923. He died on 25 February 1929, in San Diego, California, United States, at the age of 82, and was buried in Crown Hill Cemetery, Marion, Indiana, United States.