Mahoning County, Ohio Genealogy

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Coordinates: 41.02°0′N 80.77°0′W / 41.02°N 80.77°W / 41.02; -80.77

Mahoning County, Ohio
Map of Ohio highlighting Mahoning County
Location in the state of Ohio
Map of the U.S. highlighting Ohio
Location of Ohio in the U.S.
Mahoning County Courthouse.jpg
Address Mahoning County Courthouse
120 Market St
Youngstown, Ohio 44503
Mahoning County Website
Phone: 330–740–2104
United StatesGotoarrow.png Ohio Gotoarrow.png Mahoning County

Historical Facts

Beginning dates for major county records
*For earlier dates, try... Church | Obituaries | Cemeteries

Boundary Changes

See an interactive map of Mahoning County boundary changes

Record Loss


Bible Records


Business Records and Commerce


Cemetery records often reveal birth, marriage, death, relationship, military, and religious information.

Online Grave Transcripts Published Grave Transcripts County Cemetery Directories

Family History Library


Names in Stone


Billion Graves

Billion Graves


Ohio Gravestones

Names in Stone

See Ohio Cemeteries for more information.


Church Records

Church records and the information they provide vary significantly depending on the denomination and the record keeper. They may contain information about members of the congregation, such as age, date of baptism, christening, or birth; marriage information and maiden names; and death date. For general information about Ohio denominations, view the Ohio Church Records wiki page.

  • Mahoning Chapter Daughters of the American Revolution, Youngstown, Ohio, Court, Church and Family Records of Mahoning and Columbiana Counties of Ohio FHL film 859777 item 7
Society of Friends

===== Finding More Church Records =====

Additional church records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Church Records in online catalogs like:

Court Records

See Ohio Court Records for more information about using these records.

The following abstracts and copies of original records may be accessed through the Family History Library.

Emigration and Immigration

Ethnic, Political, or Religious Groups




Local History

Local histories are available for Mahoning County, Ohio Genealogy. County histories may include biographies, church, school and government history, and military information. For more information about local histories, see the wiki page section Ohio Local Histories.

Land and Property

Land and property records can place an ancestor in a particular location, provide economic information, and reveal family relationships. Land records include: deeds, abstracts and indexes, mortgages, leases, grants and land patents.

See Ohio Land and Property for additional information about early Ohio land grants. After land was transferred to private ownership, subsequent transactions were usually recorded at the county courthouse and where records are currently housed.

Online Resources

Additional land records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Land and Property Records in online catalogs like:



Civil War

Civil War service men from Mahoning 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 Mahoning County.

- 41st Regiment, Ohio Infantry, Company F
- 105th Regiment, Ohio Infantry, Companies A and H

Naturalization and Citizenship


Mahoning County, Ohio Genealogy newspapers may contain genealogical value including obituaries, births, marriages, deaths, anniversaries, family gatherings, family travel, achievements, business notices, engagement information, and probate court proceedings.

To access newspapers, contact public libraries, Ohio Genealogical Society chapters, college or university libraries, the Library of Congress, Google News, or the Ohio Historical Society. The Ohio Genealogical Society Obituary Database is another source of newspaper information.

For more Ohio newspaper information see the Newspaper Guides on the wiki page Ohio Newspapers.

Online Newspapers

Online Newspaper Abstracts

Newspaper Extracts and Abstracts in Book Form

Finding More Ohio Newspapers

Additional newspapers abstracts can sometimes be found using search phrases such as Mahoning County Ohio newspapers in online catalogs like:




Probate records created after 1852 are held by the Mahoning County, Ohio Genealogy Probate Court. From 1797 or the creation of the county, probate records were held by the Court of Common Pleas. Most counties transferred all records to the Probate Court, but in some circumstances, Court of Common Pleas records should be searched for records prior to 1852. Most records are housed at the Mahoning County, Ohio Genealogy Courthouse. Some records are on microfilm at the Ohio Genealogical Society and the Family History Library. For more complete information about the location of county probate records see:

See the wiki page Ohio Probate Records for information about how to use probate records.

Content: Probate Records may give the decedent's date of death, names of his or her spouse, children, parents, siblings, in-laws, neighbors, associates, relatives, and their place of residence.

Record types: Wills, estates, guardianships, naturalizations, marriage, adoption, and birth and death records (1867-1908 only).

Finding More Probate Records

Additional probate records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Probate Records in online catalogs like:

Public Records



Mahoning County Courthouse
120 Market Street
Youngstown, OH 44503
Phone: 330–740–2104

Probate Court
Phone: 330-740-2310

Genealogical Resources: County marrige records; Births and Deaths 1864–1908; Guardianship; Will and estates (Wills are on film–originals are at the Mahoning Valley Historical Society.)

Mahoning County Recorder's Office
Phone: 330-740-2345

Genealogical Resources: Land and deeds; grave registrations; soldier's discharges after 1864. Mark the envelope of your requests with Probate Office or Recorder's Office

Mahoning County Clerk of Courts
Phone: 330-740-2104

Original civil court files 1846–1900 are housed at the Mahoning Valley Historical Society.

Family History Centers

Family History Centers (FHCs) are branches of the Family History Library in Salt Lake City, Utah, and are located all over the world. Their goal is to provide resources for family history research.

The main FHC for Mahoning County, Ohio is the Youngstown Ohio Family History Center. For additional nearby Family History Centers, search online in the FHC directory.


Public Library of Youngstown and Mahoning County
305 Wick Ave.
Youngstown, OH 44503
Phone: 330–744–8636

Genealogical resources: Newspaper film copies and indexes, directories, cemetery inscriptions database. This library is a FamilySearch Center where films can be ordered and viewed.


Youngstown Historical Center of Industry and Labor
151 W. Wood Street
Youngstown OH 44501–0533
Phone: 330–743-5934

Genealogical resources: Mahoning County Common Pleas Court Records, Court Dockets, Deeds, Newspapers


Mahoning County Chapter of the Ohio Genealogical Society
PO Box 9333
Youngstown, Ohio 44513-9333

The society has volunteers at the courthouse each Thursday 8am to 3pm; located in the Marriage Dept in the basement. Society members also volunteer at the Main Library Thursdays 1–4.

Mahoning Valley Historical Society
648 Wick Avenue
Youngstown, OH 44502-1289
Phone: 330–743-2589
Genealogical collections: The MVHS Archival Library. Original probate and civil court records 1846–1900 for Mahoning County. Collection includes diaries, Bibles, photographs, fraktur, manuscripts, deeds, wills, maps, architectural and mechanical drawings, ledgers, county and local government records, and church records.


Ohio tax records complement land records and can be used in place of censuses before 1820 or to supplement the years between censuses. Because only persons who owned taxable property were listed, many residents were not included in tax lists. There may also be gaps of several years in the tax records of some counties. For more information see the wiki page Ohio Taxation.

Original county tax lists are available 1846 and 1859 at the Mahoning Valley Historical Society.

Finding More Tax Records

Additional tax records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Tax Records in online catalogs like:

Vital Records

See Ohio Vital Records for more information about Vital records in Ohio.

Vital records consist of birth, death, marriage and divorce records. Although Ohio enacted a statute in 1856 -1857 requiring registration of births, deaths and marriages, many did not comply. A second law occurred in 1867 but, again, was not always followed. By 1908, the law was more clearly defined and kept. Any existing birth and death records from 1867 through December 19, 1908 are located at the Mahoning County Probate Court. The Ohio Department of Health has birth records filed after December 20, 1908 and death records filed after January 1, 1954 while the Ohio Historical Society houses death records from December 20, 1908 through December 31, 1953. In addtion, the Youngstown City Health District has births 1909 to present and deaths 1892 to present.

Original marriage records are held at the office of the Mahoning County Probate Court with divorce records located with the Clerk of Court.


Online Birth Indexes and Records

Original Birth Indexes and Records on Microfilm


Online Marriage Indexes and Records

Original Marriage Records on Microfilm

  • 1846-1916 - Marriage Records; Marriage Licenses, 1852-1861 - index 1852-1920 FHL films 907323 (first of 23 films)
  • 1846-1865 - Marriages, 1846-1865, Marriage Applications, 1853-1864, Births and Deaths, 1857, of Mahoning County, Ohio; Cemetery Records of Mahoning County FHL film 317439
  • 1857 - Register of Births, Marriages and Deaths FHL film 907325


Online Death Indexes and Records

Original Death Records on Microfilm


Finding More Vital Records

Additional vital records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Vital Records in online catalogs like:



  1. WorldCat 50140092 Handybook for Genealogists: United States of America, 10th ed.] (Draper, Utah: Everton Pub., 2002), [FHL book 973 D27e 2002].
  2. Wikipedia contributors, "Mahoning County, Ohio" in Wikipedia: the Free Encyclopedia at,_Ohio (accessed 10 May 2012).
  3. Carol Willsey Bell, Ohio Wills and Estates to 1850: An Index (Columbus, Ohio: the author, 1981). FamilySearch Books Online - Free online copy.