Clark Genealogy (in Mercer County, PA)
USA (1,403,636) > Pennsylvania (69,798) > Mercer County (716) > Clark (22)
NOTE: Additional records that apply to Clark are also found through the Mercer County and Pennsylvania pages.
Clark Birth Records
Pennsylvania Births, 1852-1854 Ancestry 
Pennsylvania, Birth Records, 1906-present Pennsylvania Department of Health
Clark Cemetery Records
Clarksville Cemetery Find a Grave
Glenwood Cemetery Find a Grave
Clark Census Records
U.S. Federal Census 1790-1950 Ancestry
U.S. Federal Census 1790-1950 MyHeritage
United States Federal Census, 1790-1950 Family Search
Clark Church Records
Church records, 1845-1868 [Free Presbyterian] FamilySearch Library
Church records, 1847-1892 [Clarksville United Presbyterian] FamilySearch Library
Clark City Directories
White and Yellow Pages, Shenango Valley December 1976 through February 1981 Library of Congress
Clark Death Records
1906-1964 Pennsylvania Death Index MyHeritage
Pennsylvania Death Certificates, 1906-1967 Ancestry
Pennsylvania, Death Records, 1906-present Pennsylvania Department of Health
United States Obituary Index from Online Sources MyHeritage
Clark Histories and Genealogies
FamilySearch Family Tree MyHeritage
MyHeritage Family Trees MyHeritage
Clark Immigration Records
Clark Marriage Records
1823-1997 Pennsylvania Marriages (incomplete) MyHeritage
Pennsylvania, Marriages, 1852-1968 Ancestry
Clark Newspapers and Obituaries
United States Obituary Index from Online Sources MyHeritage
Clark Probate Records
Pennsylvania, Wills and Probate Records, 1683-1993 Ancestry
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