Born: 1813 Cabell County, West Virginia
Died: 1845-1850 La Salle County, Illinois
McComas followed his brother Elisha and moved to Sangamon County, Illinois, in 1827. In 1831, he married Nancy Shelton, with whom he had seven children. Sometime after 1840, McComas moved to La Salle County, Illinois, where he died before 1850.
John Carroll Power and S. A. Power, History of the Early Settlers of Sangamon County, Illinois (Springfield, IL: Edwin A. Wilson, 1876), 495; U.S. Census Office, Sixth Census of the United States (1840), Sangamon County, IL, 46; U.S. Census Office, Seventh Census of the United States (1850), La Salle County, IL, 233.