Census Links- United States &gt; Illinois &gt; Williamsonhttp://censuslinks.com/United-States/Illinois/Williamson/Census, Birth, Death, Marriage Transcriptions on the Internet 1850 Census, Williamson County, Illinois http://ftp.us-census.org/pub/usgenweb/census/il/williamson/1850/1850 Census, Williamson County, IllinoisWed, 02 Sep 2009 07:51:44 GMT1870 Census Index, Williamson County, Illinois ftp://ftp.rootsweb.com/pub/usgenweb/il/williamson/census/Wed, 30 Nov -1 00:00:00 GMTWilliamson County, Illinois Census Data http://quickfacts.census.gov/qfd/states/17/17199.htmlFrom the <a href="http://www.iltrails.org/williamson/">Illinois Trails History and Genealogy Website</a>Wed, 30 Nov -1 00:00:00 GMT