Census Links is a growing catalog of links to transcriptions of census, tax lists, birth, death, marriage and military records, all freely available to help with your genealogy research.
1890 Special Schedule Almshouse, Mercer County, Pennsylvania
From the Mercer County, Pennsylvania GenWeb
From the UsGenWeb Census Project
1900 Census, Mercer County, Pennsylvania (Partial)
1800 Census, Mercer County, Pennsylvania
1820 Census, Mercer County, Shenango Township, Pennsylvania