Kendall County Genealogy Records

Kendall County genealogy records stretch back to the early 1840s, with marriage files starting in 1841 and land records from the same year. The county clerk in Yorkville holds vital records, while the circuit clerk keeps naturalization papers and court files. You can search birth, death, marriage, probate, and land records through the Kendall County offices or request copies by mail. Historical records that have left the clerk's vault are stored at the IRAD site at Northern Illinois University in DeKalb. Kendall County is one of the smaller counties in Illinois by size, but its record collection runs deep for genealogy work.

Kendall County Clerk Vital Records

The Kendall County Clerk at 502 S Main St in Yorkville, IL 60560 is the starting point for genealogy in Kendall County. Call (630) 553-4104 for record inquiries. Birth and death records begin in 1877. Marriage records go back to 1841. Land records also start in 1841. Probate files date to 1847. That is a long span of records for a county that was organized in 1841. The early marriage and land files are some of the oldest you will find in this part of Illinois.

Kendall County also holds wills from 1849 and guardian records from 1858. Wills are kept with the probate files. Guardian records show who was given charge of minor children or people who could not manage their own affairs. Both types of records are useful for genealogy because they name family members, list relationships, and sometimes describe property. If you are looking for details about an ancestor's family structure in Kendall County, probate and guardianship files can fill in what vital records leave out.

Under the Vital Records Act (410 ILCS 535), genealogy copies of birth records are available when the birth date is 75 or more years ago. Death records open after 20 years. Marriage records become available after 50 years. Copies issued for genealogy purposes get stamped as uncertified. They work for family research but not for legal matters.

Note: Naturalization records for Kendall County are held by the Circuit Clerk, not the County Clerk.

Kendall County Court and Probate Records

The Kendall County Circuit Court handles naturalization records, probate cases, divorce files, and other court matters that are valuable for genealogy research. Naturalization papers show when and where an immigrant became a citizen. These files often list the country of origin, ship of arrival, and a physical description. If your ancestor came to the United States and settled in Kendall County, the circuit clerk may have their naturalization petition on file.

Probate records in Kendall County date to 1847. That means over 175 years of estate files sit in the county's collection. A probate case might include a will, an inventory of property, a list of debts, and the names of all heirs. These files give you a snapshot of a family at a specific point in time. Guardian records from 1858 forward add another layer. When a parent died and left minor children, the court had to appoint a guardian. Those records name the children, their ages, and the adult chosen to care for them. This kind of detail is hard to find anywhere else.

The Counties Code (55 ILCS 5) spells out the duties of county clerks as custodians of vital records. It also covers the circuit clerk's role in maintaining court files. Both offices in Kendall County follow these state rules for how long records must be kept and who can access them.

Kendall County Records at IRAD

The IRAD depository for Kendall County is at Northern Illinois University in DeKalb. The NIU location serves Kendall County along with nearby counties like Kane, DuPage, LaSalle, and Will. Research at IRAD is free. Call (815) 753-1807 to ask about Kendall County holdings or to check their hours before you visit.

IRAD holds older Kendall County government records that have been transferred for long-term storage. These can include early vital records, court files, probate cases, naturalization papers, and other local government documents. The IRAD holdings database lets you search what has been sent from Kendall County to NIU. If the clerk or circuit clerk no longer has a record you need, there is a good chance it ended up at IRAD. Mail and phone requests are accepted but limited to two names each.

The Local Records Act (50 ILCS 205) is the law that created the IRAD system. This screenshot of the Local Records Act page shows the legal framework behind how Kendall County records are preserved across the state.

The Act requires that local government records cannot be destroyed without a proper disposal certificate. Records with long-term research value get transferred to IRAD for permanent storage. That is why Kendall County records from the 1840s still exist and are open for genealogy research today.

Searching Kendall County Genealogy Records

The Illinois State Archives in Springfield has statewide indexes that cover Kendall County. Their free online databases include the statewide marriage index from 1763 to 1900 and death indexes for several periods. If your ancestor married in Kendall County before 1900, the marriage index is the quickest way to check. Public domain land sale records are also in the database. These searches are all free and run from home.

The Illinois Department of Public Health holds statewide birth and death records from 1916 forward. You can request a genealogy copy by mail for $10. IDPH takes roughly 12 weeks to process these requests. You cannot order genealogy copies online or by fax. Only mail works. The Freedom of Information Act (5 ILCS 140) governs access to government records in general, but vital records follow the Vital Records Act instead.

For in-person research, the Kendall County offices are in Yorkville. The clerk and circuit clerk are both near the courthouse. You can also visit the IRAD at NIU in DeKalb, which is a short drive from Yorkville. The State Archives in Springfield offer free research and you can photograph documents at no charge.

Nearby Counties

These counties border Kendall County. Families often crossed county lines, so if you cannot find a record in Kendall County, check the neighbors. A marriage might have been filed in the bride's home county or a death recorded where the person passed rather than where they lived.