Search Cass County Genealogy Records

Cass County genealogy records date back to 1835 when the county was organized in western Missouri. The Recorder of Deeds in Harrisonville holds marriage licenses and land records from that year forward, while the Circuit Clerk maintains probate, divorce, and civil court files. Cass County sits south of the Kansas City metro area and has a long history as a border county with records that span the Civil War period. The Cass County Historical Society holds supplemental materials including Civil War collections that are valuable for any family research in this area.

Cass County Recorder of Deeds

The Cass County Recorder of Deeds is located at 102 E. Wall St. in Harrisonville. The phone number is 816-380-8129. Marriage records and land records here go back to 1835, giving genealogists access to nearly 190 years of official documents. Marriage licenses are among the most useful records in the Recorder's office. They name both parties, provide a date, and in older licenses may also list ages and sometimes parents, which helps link one generation to the next.

Land records at the Recorder's office include warranty deeds, quitclaim deeds, deeds of trust, and mortgage documents. For a border county like Cass, the land records have added significance because property changed hands frequently during the Civil War period and its aftermath. Tracking a family's land ownership through the 1860s and into the 1870s can reveal disruptions caused by military occupation, Order No. 11 (which forcibly displaced much of the population in 1863), and the postwar resettlement. Deed books from that era may show land transfers at below-market prices or entirely new families occupying previously established homesteads.

Standard recording fees apply statewide. The fee is $24 for the first page and $3 for each additional page. Document copies cost $1.00 per page. Marriage licenses cost $46.00 and both parties must appear in person with a valid photo ID and Social Security number. There is no waiting period, and the license is issued the same day.

The Recorder's office is generally open Monday through Friday, 8:00 AM to 4:30 PM. Call 816-380-8129 before visiting to confirm current hours and ask about access to older records.

Cass County Court and Probate Records

The Cass County Circuit Clerk handles court records for the 17th Judicial Circuit. The courthouse is in Harrisonville at 102 E. Wall St. Court records include divorce, probate, naturalization, and civil case files going back to 1835. For genealogists, the probate files are often the most useful because they name heirs, describe property, and identify family relationships in legal detail. A Cass County probate file from the 1880s or 1890s might list all surviving children, a surviving spouse, and any grandchildren who inherited in place of a deceased parent.

The Civil War era left a distinct mark on Cass County court records. Order No. 11 in 1863 displaced most of the population of Cass, Bates, Jackson, and Vernon counties, and many families never returned. If you have an ancestor who was in Cass County before 1863 and then disappears from later records here, it is worth searching court and land records to understand what happened to their property and where they might have relocated. Records from the late 1860s sometimes show wartime claims, loyalty oaths, and property restoration proceedings that are not found in any other context.

For court cases filed after November 12, 2003, Missouri Case.net provides free online access. Cases before that date require a visit to the courthouse in Harrisonville or a written request to the Circuit Clerk.

Vital Records in Cass County

The Cass County Health Department in Harrisonville is the local source for certified birth and death certificates. Birth certificates are available from 1920 onward, and death certificates from 1980 onward. Requestors need a valid photo ID and must be an eligible party. Eligible parties include the person named, a parent, a legal guardian, or an authorized representative.

Older vital records are held at the Missouri Bureau of Vital Records at 930 Wildwood Dr., Jefferson City, MO, phone (573) 751-6387. Certified copies cost $15.00 each. Missouri started statewide birth and death registration around 1910, and those records are at the Bureau going forward. Some records from 1883 to 1909 also exist, though coverage is incomplete for most counties. For Cass County, the disruption of the Civil War period means vital records from the 1860s are especially scarce, and researchers should use census records, church records, and military records to supplement the official civil registration.

The free death certificate database at Missouri Digital Heritage covers 1910 through 1969 and has over 9 million records searchable by name. Death certificates from this period list cause of death, place of burial, informant, and parents' names, making them a key tool for extending family lines back beyond 1910.

Note: The Cass County Historical Society holds Civil War-era records and collections that may help researchers whose ancestors were affected by the wartime displacement of 1863.

Cass County Historical Society and Research Resources

The Cass County Historical Society maintains an archive in Harrisonville focused on local history and genealogy. Their holdings include Civil War collections, land records transcriptions, and family files donated by researchers over many years. The Society is a strong resource for anyone researching families in the western Missouri border region, particularly those affected by the Civil War and the post-war resettlement period. Staff and volunteers can point you toward materials that would not be obvious from a courthouse visit alone.

The Harrisonville area library provides access to standard genealogy databases including Ancestry Library Edition and HeritageQuest Online at no charge for in-library use. Local newspaper collections on microfilm may include papers from Harrisonville and nearby communities going back to the 1800s. Obituaries in those papers often named family members who lived outside the county, which can help you track branches of a family that moved away. Marriage and anniversary announcements in local papers are another source that supplements courthouse marriage records with personal details not found in legal documents.

The State Historical Society of Missouri holds digitized newspaper archives covering western Missouri, including Cass County titles. Their collection is searchable by keyword and available online.

The Cass County MOGenWeb page provides free genealogy resources compiled by volunteers, including transcribed records and family histories specific to this county.

Volunteer-maintained genealogy sites often hold records not found in official archives, including cemetery transcriptions and donated family files.

Online Genealogy Resources for Cass County

Free online platforms are a good starting point before visiting Harrisonville in person. Missouri Digital Heritage holds death certificates from 1910 to 1969, early land records, and military records searchable at no cost. The Missouri State Archives at 600 W. Main St. in Jefferson City, (573) 751-3280, holds microfilm of Cass County records. Their online guides describe county-level holdings and help you determine which films to order before making the trip to Jefferson City.

FamilySearch at familysearch.org has indexed Cass County census records from 1850 through 1940 and holds some probate and land record images from the 1800s. Census records are available for 1850, 1860, 1870, 1880, 1900, 1910, 1920, 1930, and 1940. The 1890 census was destroyed by fire, so the 1880 and 1900 records are the primary tools for bridging that gap. For Cass County specifically, the 1860 and 1870 censuses are particularly important given the Civil War disruption, as they can show which families were present before and after the wartime displacement.

The Missouri State Genealogical Association connects researchers with county societies and provides resources for Missouri family history. Their member network includes researchers familiar with western Missouri counties like Cass.