Union County, Ohio Genealogy

Guide to Union County Ohio genealogy. Birth records, marriage records, death records, census records, family history, and military records.

United States Ohio  Union County

Historical Facts

 * Parent Counties: Formed from Delaware, Franklin, Logan and Madison Counties in 1820).
 * County Seat: Marysville
 * Neighboring Counties: residents may also have records in Hardin (northwest)·Madison (south)·Logan (west)· Champaign (southwest)·Marion (northeast)·Delaware (east)· Franklin (southeast)

Boundary Changes
See an interactive map of Union County boundary changes.

Cemeteries

 * Oakdale Cemetery, Marysville BillionGraves

Military

 * Civil War


 * Civil War service men from Union County served in various regiments. Men often joined a company (within a regiment) that originated in their county. Listed below are companies that were specifically formed in Union County.
 * -1st Regiment, Ohio Cavalry, Companies D and K
 * -96th Regiment, Ohio Infantry, Company K, roster

Courthouse
Union County Courthouse 215 W 5th Street Marysville, OH 43040 Phone: 937.645.3006 County recorder has land records from 1819; Probate Court has birth, marriage, death and probate records

Family History Centers

 * Introduction to LDS Family History Centers

Death
Ohio Deaths, 1908-1953 Free name indexes and images at FamilySearch. Records include such information as birth date of deceased, city, county, and state of death, name of spouse if married, names of parents, maiden name of mother, name of informant, if deceased was single, married, windowed or divorced, occupation of deceased.

Web Sites

 * USGenWeb project. May have maps, name indexes, history or other information for this county. Select the state, then the county.
 * Links to specific resources for Union County; many are free. www.genealogyinc.com/ohio/union-county/

Neighboring Counties

 * Champaign
 * Delaware
 * Franklin
 * Hardin
 * Logan
 * Madison
 * Marion