Born: 1813-10-29 Indiana
Died: 1861-02-10 Shawneetown, Illinois
McCallen came to Shawneetown in 1843, and worked in a dry goods store. In 1845, he studied law and became a lawyer one year later. He was a member of the Illinois Constitutional Convention in 1847, and became the register of the Shawneetown Land Office in 1849. In 1850, McCallen was working as a lawyer and owned $800 in real estate. By 1860, he was still practicing law and had amassed $3,000 in real estate, with a personal estate of $300.
Arthur Charles Cole, ed., The Constitutional Debates of 1847, vol. 14 of Collections of the Illinois State Historical Library, Constitutional Series (Springfield: Illinois State Historical Library, 1919), 2:969; U.S. Census Office, Seventh Census of the United States (1850), Gallatin County, IL, 388; U.S. Census Office, Eighth Census of the United States (1860), Gallatin County, IL, 18; John M. Palmer, ed., The Bench and Bar of Illinois: Historical and Reminiscent (Chicago: Lewis, 1899), 2:857.