Hamilton County is in Southern Illinois. It was formed in 1825 and is named for Alexander Hamilton, the first U.S. Secretary of the Treasury.
Birth and death records have been
kept since 1878. Marriage records and
Probate records date to the formation of the county and the earliest land
records are from 1835. Only some probate
records can be found on FamilySearch.org.
The County Clerk’s office holds
the vital and land records. The
courthouse is location at 100 S. Jackson St., McLeansboro, IL 62859.
The form to order vital records is at https://www.hamiltoncountyillinois.com/wp-content/uploads/2016/06/genealogy-application-1.pdf.
The IRAD depository at Southern
Illinois University holds some probate and naturalization records for this
county. A useful site with several types
of records is the Yesterdays of Hamilton County, Illinois site at http://www.carolyar.com/Illinois/HamiltonCounty.htm.
Note: This was originally published in the "County Spotlight" column in the Illinois State Genealogical Society Newsletter (July 2020).