When David Maxwell was born on 16 July 1808, in Ohio, United States, his father, John Andrew Maxwell I, was 42 and his mother, Jane Brazelton, was 34. He married Margaret Mary Aikins about 1834, in Illinois, United States. They were the parents of at least 4 sons and 3 daughters. He died on 22 September 1875, in Ogle, Illinois, United States, at the age of 67, and was buried in Lafayette Township, Ogle, Illinois, United States.