1850. Martin W Eagan lives in Copia County, Mississippi in 1850. Jane Eagan age 16 lives with him but she is listed last after all his (presumed) children -- even though she is the oldest by a year. Martin's oldest daughter is named Kezziah and his second oldest Margaret Jane. So it seems clear that Jane is not Martin's daughter. She is either his niece or his sister, I would assume.