Union County Genealogy
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Union Countywide Sources
1790-1940 U.S. Federal Census Records
Illinois Census Returns, 1810 and 1818
Illinois Census Returns, 1820
1835 census of Union County, Illinois Family History Library
1883 Union County Federal Pension US Gen Web Archives
A house divided : Union County, Illinois 1818-1865 Family History Library
An Atlas of Union County, Illinois Family History Library
An Index to the names of persons appearing in History of Alexander, Union, and Pulaski counties, Illinois Family History Library
An index to the History of Alexander, Union, and Pulaski counties, Illinois Family History Library
BillionGraves Cemetery Records Index Family Search
Birth records, 1851-1915; index, 1878-1907 Family History Library
Commissioners book of seminary land situate in Union Co., Illinois, 1831-1841 Family History Library
Death records, 1877-1915 Family History Library
Deeds, 1818-1887; index, 1856-1890 Family History Library
Family maps of Union County, Illinois : with homesteads, roads, waterways, towns, cemeteries, railroads, and more Family History Library
Federal Land Patents Bureau of Land Management
Find A Grave Gravestone, Tombstone, and Memorial Photo Collection World Vital Records
History of Alexander, Union and Pulaski Counties, IL (1883) Every Name Index
History of Alexander, Union and Pulaski Counties, Illinois Open Library
History of Alexander, Union and Pulaski County, IL (1883) Every Name Index
History of Alexander, Union and Pulaski counties, Illinois Family History Library
History of Alexander, Union, and Pulaski Counties, Illinois Family History Library
History of Union County : 1983 history of Union County, Illinois with some genealogy notes Family History Library
Illinois Deaths and Stillbirths Index, 1916-1947
Illinois Marriage Index, Union (1818-1900) Illinois State Archive
Illinois Marriage Records 1860 - 1905 Archives
Illinois Marriages To 1850
Illinois Marriages, 1790-1860
Illinois Marriages, 1851-1900
Illinois, Births and Christenings, 1824-1940 Family Search
Illinois, Diocese of Belleville, Catholic Parish Records, 1729-1956 (includes 28 counties) Family Search
Illinois, Marriages, 1815-1935 Family Search
Illinois, Probate Records, 1819-1970 Family Search
Index of of [sic] names contained in History of Alexander, Union, and Pulaski counties, Illinois Family History Library
Index to obituaries and death notices in the Jonesboro Gazette, 1858-1883 : Union County, Illinois Family History Library
Land atlas & plat book, Union County, Illinois, 1978 Family History Library
Land entries for Union County, Illinois, 1818-1920 Family History Library
Land entry book, 1816-1904 Family History Library
List of Union County, Illinois cemeteries Family History Library
Marriage consents, 1819-1873 Family History Library
Marriages of Union County, Illinois, 1818-1880 Family History Library
Marriages, 1818-1907 Family History Library
Militia roll record, 1862 Family History Library
Naturalization records from the Illinois court houses of Alexander County, Hardin County, Johnson County, Massac County, Pope County, Pulaski County, Union County Family History Library
Naturalization records, 1860-1904 Family History Library
Negro book, A no. 1, 1835-1844 Family History Library
Obstetric records, 1861-1921 Family History Library
Order book, 1818-1848 Family History Library
Pioneer sketches of Union County, Illinois Family History Library
Pre-1916 Illinois Death Index Union (Aug. 1877-Dec. 1915) Illinois State Archive
Probate records, 1818-1892; index, 1822-1965 Family History Library
Records of Justices of the Peace by the Clerk County Commissioner, 1827-1851 Family History Library
Revolutionary War pioneers : pension and service papers of veterans of the American Revolution who settled in southern Illinois in the counties of Alexander, Johnson, Pope, Pulaski, Union, Hardin and a list of officers and soldiers of the Illinois Regiment Family History Library
Soldiers discharges, 1863-1866 Family History Library
St. John's Cemetery, old stones, Union County, Illinois Family History Library
Standard atlas of Union County, Illinois Family History Library
Township plat of Union County, Illinois, 1881 Family History Library
U.S. Federal Census 1790-1940 Family Search
Union Co., Illinois obituaries and wedding announcements Family History Library
Union Co., Illinois, obituary cards Family History Library
Union County Blackhawk War and Mexican War Veterans
Union County, Illinois cemeteries Family History Library
Union County, Illinois genealogical information Family History Library
Union County, Illinois guardianship records, 1818- 1918 Family History Library
Union County, Illinois marriage records Family History Library
Union County, Illinois probate records Family History Library
Union County, Illinois soldiers : of the American Revolution, the War of 1812, the Creek Indian War, the Seminole Indian War, the Illinois State Militia, the Black Hawk Indian War, the Mexican War, the Civil War Family History Library
More Union County records are available on the statewide page