I think that the dates for Joel Sr (1782) and his son Joel Jr are very well documented. Joel Jr. Died around 1840 in Illinois, shortly after arriving there. His wife and three children, then travelled to Carroll County ARK, then into Madison County AR to live with other family members. Joel Jr.'s sister Eliza Maxwell b. 1810 had married William C Morris in Overton County. She died en route to Carroll County AR around 1842ish and it is believed that Joel Jr's wife was part of that Train to Arkansas.