[S3121] Macoupin County, Illinois, Marriage Book 3: [p. not stated], license no. 1559, Thomas Walker-Matilda Knight (1850); Illinois Secretary of State, "Illinois Statewide Marriage Index, 1763-1900," database, Illinois State Archives (http://www.cyberdriveillinois.com/departments/archives/archives.html : accessed 4 February 2013).