Debbie, Very good question!! I wish I knew. I believe they were still in Mississippi County. However, their oldest daughter, Arkansas Caroline, was married in Howell County in 1884. I don't have a clue to John, their second child. Their third child was born in East Prairie in 1870. Apparently the other children were also born in Mississippi County as well. John B. Duvall, b. in Ark. Mary b. ca 1840 (sister to Louis) married William Roach 10 Jan 1860 in St.Genevieve County. I understand from a relative that William was a blacksmith. Louis, b. ca 1838 in Tennessee, according to the 1850 census for Mississippi County. Thanks, Marie