Census Links- United States > West Virginia > Mercerhttp://censuslinks.com/United-States/West_Virginia/Mercer/Census, Birth, Death, Marriage Transcriptions on the Internet 1840 Census, Mercer County, West Virginia http://ftp.us-census.org/pub/usgenweb/census/wv/mercer/1840/1840 Census, Mercer County, West VirginiaTue, 09 Mar 2010 03:45:23 GMT1850 Census, Mercer County, West Virginia http://ftp.us-census.org/pub/usgenweb/census/wv/mercer/1850/1850 Census, Mercer County, West VirginiaTue, 09 Mar 2010 03:46:03 GMT