[S167] Illinois Secretary of State, "Illinois Statewide Marriage Index, 1763-1900," database, Illinois State Archives (http://www.cyberdriveillinois.com/departments/archives/archives.html : accessed 9 November 2014), entry for Isaac N. Holcomb-Mary B. Matteson, Whiteside County, 22 April 1868; citing license no. 2052.