Online Databases

Global Database Search 

• Public Domain Land Tract Sales Database
• Database of Illinois Servitude and Emancipation Records

  Databases of Illinois Veterans

  • Database for the Illinois Veterans' History Project
  • Database of Illinois War of 1812 Veterans
  • Database of Illinois Winnebago War Veterans
  • Database of Illinois Black Hawk War Veterans
  • Database of Illinois Mexican War Veterans
  • Illinois Civil War Muster and Descriptive Rolls Database
  • Database of Illinois Civil War Veterans Serving in the U.S. Navy
  • Database of Illinois Civil War Veterans of Missouri Units
  • Database of Illinois Spanish–American War Veterans
  • Database of the 1929 Illinois Roll of Honor
  • Database of Illinois Soldiers' and Sailors' Home Residents

• Illinois Statewide Marriage Index, 1763–1900
  An Ongoing Project of the Illinois State Archives & the Illinois State Genealogical Society
   
  
• Illinois Statewide Death Index, Pre–1916
  An Ongoing Project of the Illinois State Archives
   
• Illinois Statewide Death Index (1916–1950)
  An index created by the Illinois Department of Public Health

• Local Governmental Records in the IRAD System
• Name Index to Illinois Local Governments

• Records at Eastern Illinois University
  • Arthur Local Registrar's Birth Certificates Index (1868–1925)
  • Mattoon Death Certificate Registers Index (1899–1918)
  • Mattoon Court of Common Pleas Case Files Index (1869–1873)
  • Shelby County Circuit Court Case Files Index (1828–1871)
  • Wayne County Coroner's Inquest Record Index (1888–1960)

• Records at Illinois State University
  • DeWitt County Coroner's Inquest Files Index (1924–1977)
  • Livingston County Probate Case Files Index (1837–1958)
  • Logan County Circuit Court Criminal Case Files Index (1857–1945)
  • McLean County Probate Record Index (1834–1934)
  • McLean County Will Record Index (1838–1940)
  • Vermilion County Coroner's Inquest Files Index (1908–1956)
  • Woodford County Almshouse Registers Index (1868–1957)

• Records at Northeastern Illinois University
  • Chicago City Council Proceedings Files, 1833–1871
  • Cook County Coroner's Inquest Record Index, 1872–1911
  • Chicago Police Department Homicide Record, 1870–1930

• Records at Northern Illinois University
  • Carroll County Birth Certificates Index (1877–1913)
  • JoDaviess County Almshouse Registers Index (1846–1938)
  • Kane County Circuit Court Case Files Index (1836–1870)
  • Lake County Circuit Court Case Files Index (1840–1898)
  • Ogle County Almshouse Register Index (1878–1933)
  • Ogle County Naturalization Papers (County Court) Index (1872–1906)

• Records at Southern Illinois University
  • East St. Louis City Court Naturalization Papers Index (1874–1906)
  • Madison County Probate Case Files Index (1813–1903)
  • St. Clair County Circuit Court Chancery Case Files Index (1815–1870)
  • St. Clair County Farm Board Record Index (1874–1879)

• Records at the University of Illinois at Springfield
  • Macon County Circuit Court Case Files Index (1829–1861)
  • Macoupin County Coroner's Inquest Files Index (1835–1928)
  • Morgan County Poor Farm Records Index (1850–1932)
  • Sangamon County Guardian's Case Files Index (1825–1901)
  • Sangamon County Probate Case Files Index (1821–1906)

• Records at Western Illinois University
  • Adams County Almshouse Register Index (1873–1898)
  • Brown County Almshouse Registers Index (1882–1963) 
  • Fulton County Circuit Court Case Files Index (1825–1876) 
  • McDonough County Probate Case Files Index (1833-1925) 
  • McDonough County Guardian's Case Files Index (1838-1933) 
  • Mercer County Almshouse Register Index (1859–1948)
  • Peoria County Probate Case Files Index (1825–1887)
  • Rock Island Probate Case Files Index (1834–1899)
  • Stark County Almshouse Register Index (1868–1941)