When Joseph Frantz was born on 7 April 1804, in Whitehall Township, Northampton, Pennsylvania, United States, his father, Heinrich Anthony Koenig Frantz, was 32 and his mother, Margaretha Ritter, was 29. He married Salome Roth in 1827, in North Whitehall Township, Lehigh, Pennsylvania, United States. They were the parents of at least 5 sons and 2 daughters. He lived in North Whitehall Township, Lehigh, Pennsylvania, United States in 1850. He died on 20 September 1877, in Whitehall Township, Northampton, Pennsylvania, United States, at the age of 73, and was buried in Egypt Cemetery, Egypt, Whitehall Township, Lehigh, Pennsylvania, United States.