Ohio Genealogy Research Guide

by Shelley Bishop

What do the Wright brothers, Doris Day, John Glenn, LeBron James, William McKinley, Neil Armstrong, Gloria Steinem, Thomas Edison, Jack Nicklaus, and Ulysses S. Grant have in common? All hail from Ohio, the seventh most populous US state. From its beginnings as the first western frontier to a modern hub of commerce and education, Ohio has played a key role in American history. Today, millions of people throughout the world can find Buckeyes in their family trees. If you’re one of them, use our guide to discover their records and stories.

Ohio Genealogy Research Guide Contents

Ohio Genealogy Fast Facts


Part of the Northwest Territory, 1787




(quadrennial voter "censuses")


1800 (fragments)
1820 (extant)




1867 (counties)
1908 (state)


upon county establishment;
1949 (state)


Ohio Department of Health
Vital Statistics

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State History


Native American villages dotted the river valleys and dense forests between Lake Erie and the Ohio River in Colonial times. The names that the Miami, Shawnee, Delaware, Seneca, Iroquois, Wyandot, Tuscarora and Ottawa tribes gave to many Ohio rivers endure today—the word “Ohio” itself is Iroquois for “great river.” French fur traders and British surveyors found abundant game and fertile land, but frequent conflicts prevented settlement until after the American Revolution.

In 1787, the newly formed US government created the Northwest Territory out of land ceded by Britain after the Revolution. The act set Ohio, along with Indiana, Michigan, Illinois and Wisconsin, on the path to statehood. The Ohio Company of Associates ventured the first permanent US settlement in the territory, Marietta, in 1788. Revolutionary War bounty land warrants and the chance to buy public land drew pioneers from New England and other eastern states. Ohio’s early settlers also included scores of immigrants from Germany, Ireland and Great Britain.

Its population booming, Ohio became the 17th US state in 1803. Officials selected land to build a new capital, Columbus, in 1812, amid the backdrop of the War of 1812. Migration into Ohio continued to swell with the construction of new transportation routes. By 1825, the Erie Canal delivered families from as far as the Hudson River to the shores of Lake Erie. The Ohio and Erie Canal (1832) expanded that range, and the National Road (1825–1833) allowed more settlers to pass through the area. Some Ohioans followed the frontier as it moved westward to Indiana, Illinois, Missouri, Iowa and beyond.


By 1850, Ohio’s population had reached nearly 2 million, and the state was a top producer of wheat, corn and wool. The construction of railroads created new jobs and made exporting products more profitable. A different type of transportation system developed as abolitionists helped slaves pass from entry points along the Ohio River to safety via the Underground Railroad. More than 300,000 Ohioans served in Union forces during the Civil War, making the state the third-largest supplier of troops behind New York and Pennsylvania. After the war, steel, iron, and oil industries developed in Cleveland and the Mahoning Valley. Miners in eastern Ohio worked to meet the demand for coal. Glass, rubber, electric, paper, machinery, and other businesses drove the growth of cities. Factory jobs attracted thousands of immigrants to the state, particularly from Germany, Poland, Hungary, Russia, Italy and Scandinavia, including many of the Jewish faith. Southern African Americans added to the new arrivals as they migrated north to fill factory jobs.

Approximately 200,000 Ohioans served in World War I. A generation later, more than 800,000 Ohio men and women served in World War II. The postwar years brought suburban expansion and interstate highways. Today, technology, education, health care, retail, transportation and service-based businesses have become increasingly important to the state’s economy.

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Ohio History Timeline


The Iroquois Confederacy claims the Ohio country after defeating local tribes
The French claim Ohio as part of New France; French explorers become the first Europeans to visit the region


France cedes its land east of the Mississippi to Great Britain; King George III forbids Colonial settlement there
The Northwest Ordinance is passed, organizing the US territory north and west of the Ohio River
A coalition of Native American tribes formally cedes the Northwest Territory to the United States


Connecticut cedes the Western Reserve; the land is incorporated into the Northwest Territory
Ohio joins the Union as the 17th state
The Ohio and Erie Canal links the Ohio River at Portsmouth with Lake Erie


Ohio and the Michigan Territory wage the mostly bloodless Toledo War over a strip of land at their border
The last revision is made to Ohio’s county boundaries; some borders had shifted throughout the 1800s

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Historic Map

Ohio. By David H. Burr. Published By J.H. Matheer & Co. Hartford. 1846. (David Rumsey Map Collection)

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Ohio Genealogy Records Online

Vital Records


Most of Ohio’s 88 counties have birth and death records from 1867 (some, even earlier). But these records are incomplete until 1908, when registration was made mandatory. Nearly all surviving county registers have now been digitized. FamilySearch has online collections of both birth and death registers: “Ohio, County Births, 1841–2003” and “Ohio, County Death Records, 1840–2001” at FamilySearch. The Ohio Department of Health began issuing birth and death certificates in 1908. Original birth records are not available online, but offers an “Ohio, Birth Index, 1908–1998” collection that acts as a finding aid. Death records issued through 1953 can be viewed online in “Ohio Deaths, 1908–1953” at FamilySearch. Because Ohio has open records, anyone can buy certified copies of birth and death records from the Bureau of Vital Statistics. The form has a field to indicate why you’re seeking information—check the box for Genealogy.


Ohio counties created marriage records from the time they were established, starting in the 1790s. Marriage records are still kept at the county level today, though the state also began registering marriages in 1949. You can view a majority of 19th- and early 20th-century records online in the FamilySearch collection, “Ohio, County Marriages, 1789–2016”. and MyHeritage offer indexes covering various years. To obtain a copy of a marriage record, contact the county probate court.


Divorce records are also created at the county level, usually by the court of common pleas, although early cases were heard by the Ohio supreme court. Relatively few have been digitized. and Findmypast offer indexes that help locate recent records. Contact the county’s clerk of courts to request a copy.


Access to adoption records is restricted, and no public index exists. Visit to learn more.

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Census Records

Though modern Ohio appears in the federal census as early as 1800, early census records of Ohio are incomplete. The 1800 and 1810 censuses are lost except for returns of Washington County, so the 1820 census is the first (mostly) intact one of Ohio—just two counties are missing. US census records of Ohio from 1830 to 1940 are essentially complete. For 1890, only the special veterans census and fragments of Hamilton and Clinton county returns survive. Search census records at, FamilySearch, Findmypast, and MyHeritage. Ohio did not conduct state censuses. However, look for tax and voter lists, which can serve as substitutes. The FamilySearch Catalog has some.

Land Records

Ohio was a great land experiment. The state was initially carved up into several districts, each with their own ways of measuring and distributing land. So when researching an early Ohio settler, it’s crucial to understand the area he lived in. Download the state auditor’s free publication, The Official Ohio Lands Book, to learn more. Much of the state was measured using the new rectangular survey system, which subdivided land into ranges, townships and sections. Land offices handled the sale of federal land to the public. But in the United States Military District (in central-east Ohio), Revolutionary War veterans could redeem bounty land warrants for a patent. As settlers registered to buy a tract of land, their entries were recorded in tract books, which you can browse at FamilySearch. Once a tract was fully paid for, the landowner received a patent. Search patents issued for both bounty land warrants and land office sales at the Bureau of Land Management’s General Land Office.

You can order the corresponding land entry case files from the National Archives. Other large tracts of federal land were sold to groups of investors, who then divided and sold them to individuals. Virginia had its own military district, and Connecticut had claim to the Western Reserve and Firelands regions. But once a parcel of land was in private hands, the process became much simpler. Deeds authorizing the transfer of land from one owner to another in Ohio have been held by the county recorder’s office. Many older deed records have been digitized, even if they’re not yet searchable. Check the FamilySearch Catalog using a place search to find available land records. (Note: County boundaries shifted through the mid-1800s.)

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Naturalization Records

Before 1906, immigrants could complete the naturalization process at virtually any Ohio courthouse. The majority of these records have been digitized by FamilySearch in the online collection “Ohio, County Naturalization Records, 1800–1977”., Findmypast and MyHeritage also have Ohio naturalization record collections. After 1906, changes in the law required naturalizations to be handled by federal courts. Several Ohio cities have divisions of US district courts; those records are held by the Great Lakes Region National Archives facility in Chicago. FamilySearch has digitized many district court records created through the mid-1900s.

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State Publications and Resources


Newspapers proliferated throughout Ohio from the early 1800s on, as both large and small communities relied on them for information. Ohio History Connection (OHC) and libraries throughout the state have original and microfilmed newspaper collections. Archival newspapers held by OHC and other facilities are being uploaded to OhioMemory as they’re digitized, and Ohio papers may also be found on free or subscription sites.


In addition, many Ohio cities and counties produced annual directories of their residents. Digital images of select directories are available at, Fold3, the Internet Archive, MyHeritage and other sites. You can find a helpful county-by-county listing of Ohio directories, complete with links to online holdings, at

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Probate Records

Search for pre-1852 Ohio estates in records of the county court of common pleas or chancery court. Post-1852 estates can be found in the probate court. Note that some counties have moved older records to a local archive. FamilySearch has digitized a number of 19th- and early-20th-century Ohio will books, estate journals, and guardianship journals, and has an index of wills and probate records that includes images of case papers. The wide availability of online resources makes tracing your Ohio ancestors easier and more rewarding than ever.

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Ohio Genealogy Resources


Cyndi’s List: Ohio

FamilySearch Research Wiki: Ohio

Linkpendium: Ohio


Ohio History Central

Ohio Memory
Family Tree Magazine Best 75 State Websites Winner, 2020

Ohio Obituary Index


Genealogical Research in Ohio, 2nd Edition by Kip Sperry (Genealogical Publishing Co., 2003)

Ohio Genealogical Research by George Schweitzer (self-published, 1994)

Ohio Guide to Genealogical Sources by Carol W. Bell (reprint, Genealogical Publishing Co., 2009)

Ohio Towns and Townships to 1900: A Location Guide by Julie M. Overton, et al. (Ohio Genealogical Society, 2011)

Ohio Wills and Estates to 1850: An Index by Carol W. Bell (reprint, Genealogical Publishing Co., 2012)


American Jewish Archives

Cincinnati and Hamilton County Public Library

Cleveland Public Library

Columbus Metropolitan Library

National Archives at Chicago

Ohio Genealogical Society

Ohio History Connection

Western Reserve Historical Society


Campus Martius Museum: Located on the site of the Ohio Company of Associates’ first settlement, this museum highlights migration into Ohio. The restored home of Marietta founder Rufus Putnam is inside a wing of the museum; the Ohio Company’s land office is out back.

Fort Meigs: William Henry Harrison built Fort Meigs on northwestern Ohio’s Maurnee River in 1813 to protect the area from British invasion. The 10-acre log enclosure survived two assaults that year; today’s reconstruction is one of the largest log forts in America.

National Underground Railroad Freedom Center: Located on the Ohio River in a pivotal Underground Railroad town, the center focuses on American slaves’ struggles for freedom. Exhibits include an 1800s slave pen and a visual journey through three centuries of slavery.

Ohio History Center and Ohio Village: The Ohio History Center is the headquarters of the Ohio History Connection, formerly the Ohio Historical Society. Enjoy exhibits, an archives and library, and a recreated 19th-century community.

Quaker Yearly Meeting House: Built in 1814 and used until 1909, this was the first Quaker yearly meetinghouse west of the Alleghenies.

Sauder Village: At this living history museum, costumed staff interpret life in a mid-1800s rural community. Visit the Great Black Swamp, Natives and Newcomers exhibit and more.

Serpent Mound: Historians still debate whether to attribute this unusual quarter-mile-long serpent-shaped effigy to the Adena, Hopewell or Fort Ancient culture. Walk a pathway along the base of the mound and stop in the nearby museum.

Youngstown Historical Center of Industry and Labor: The iron and steel industries were the lifeblood of Northeast Ohio during the 1800s and 1900s. See what workers’ lives were like at this museum.

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