George Rogers Clark Todd is seen by most Todd biographers as the "black sheep" of the family. Notoriously irascible, in 1849 he contested his father's will on a technicality, eating into his widowed stepmother's financial support and forcing her to buy back some of her liquidated estate, including family furniture and mementos. The lawsuit also necessitated the sale of Todd family slaves. See Stephen Berry, House of Abraham: Lincoln and the Todds, a Family Divided by War (New York: Houghton Mifflin, 2007), 41-42.
James Barker, age twenty, and Nannie Heard, age eighteen, did indeed marry on August 7, 1861. Marriage certificate, James N. Barker and Nannie C. Heard, Dallas County, Ala., Alabama, Select Marriages, 1816-1942.