Williamson County Illinois Historical Society has free, online genealogy collections including:

• Williamson County Death Index, 1916-1950

• Chancery Records Index, Williamson County, 1842-1912 – small claims court

• Chancery Court Record Index, 1842-1912, 5,663 Names

• Common Law Court Record Index, 1840-1930, 9,807 Names

• Coroner’s List Index, 1885-1904, 181 Names

• Criminal Case Record Index, 1840-1912 & 1921-22, 5,079 Names

• Divorce Record Index, 1844-1963, 18,252 Names

• Foreclosure Records Index, 1896-1963, 7,803 Names

• Indictment Record Index, 1906-1950, 27,685 Entries

• Mental Health Record Index, 1920-1944, 1,282 Names

• Partition Record Index, 1845-1963, 17,780 names

• Land Grants

• Death Records

  • Storme Funeral Home Records (1914 – 1920)

• Obituary Sources — fee for lookups

• Township Tax Lists, Various, 1888-1893

  • Blairsville Township 1893 Tax List Index 
  • Herrin Township 1893 Tax List Index
  • Lake Creek Township 1893 Tax List Index
  • Grassy Township 1888 Tax List Index
  • Southern Township 1891 Tax List Index
  • Creal Springs Township 1891 Tax List Index
  • Stone Fort Township 1890 Tax List Index

• Family Records research options

• Miscellaneous Records

  • The Williamson County Poor Farm –  A series of articles taken from the Marion Daily Republican in  December 1925 on the condition and care of the residents of the Williamson County Poor Farm,  located north of Marion, Illinois
  • The Stiritz Mine Explosion of 1927, seven men were killed in this unfortunate accident.
  • 1818 – 1820 Franklin County Census Comparison – This comparison was provided by Sheila Cadwalader

• Quarterly “Footprints” Index 1998-2021