Papers of Joel Leftwich, 1786-1890 at the University of Virginia (and also papers at the University of North Carolina):
"Born in Bedford County, Virginia, Leftwich was the great grandson of Ralph Leftwich, who emigrated from England to New Kent County, Virginia (in what is now Caroline County)...".
"On January 19, 1809, he was elected Brigadier General of the Twelfth Brigade of Virginia Militia upon the death of General Joseph Martin and led this force to Fort Meigs in Ohio during the War of 1812.
"General Leftwich died on April 20, 1846, in Bedford County."
Also see this blog post about General Joel Leftwich.