When Joseph Fredd was born on 27 January 1727, in Chester, Pennsylvania, United States, his father, Nicholas Fredd, was 33 and his mother, Ann Need, was 30. He married Sarah Hadley Hadley on 18 October 1753, in New Garden, New Garden Township, Chester, Pennsylvania, British Colonial America. They were the parents of at least 10 sons and 7 daughters. He died on 9 April 1804, in Loudoun, Virginia, United States, at the age of 77.