Seneca County, Ohio Genealogy

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Guide to Seneca County, Ohio ancestry, family history, and genealogy birth records, marriage records, death records, census records, family history, and military records.

Seneca County, Ohio
Boundary map of Seneca County, Ohio
Map of the U.S. highlighting Ohio
Location of Ohio in the U.S.
Seneca County, Ohio Courthouse.jpg
Address Seneca County Courthouse
103 S. Washington St.
Tiffin, Ohio 44883-2352
Seneca County Website

Seneca County, Ohio Record Dates[edit | edit source]

Known Beginning Dates for Major County Records[1]
Birth* Marriage Death* Court Land Probate Census
1867 1841 1867 1826 1821 1828 1820
Statewide registration for births and deaths started in 1908. General compliance year is unknown.
  • Parent Counties: Formed from Huron County in 1820 (1824).
  • County Seat: Tiffin

Description[edit | edit source]

The county was named after the Seneca Indian Tribe. It's county seat is Tiffin and was founded April 1, 1820. It is located in the Northcentral area of the state.[2]

Populated Places[edit | edit source]

For a complete list of populated places, including small neighborhoods and suburbs, visit Hometown Locator. The following are the most historically and genealogically relevant populated places in this county: [3]

Unincorporated communities
Census-designated places

Neighboring Counties[edit | edit source]

Sandusky County  • Huron County  • Crawford County  • Wyandot County  • Hancock County  • Wood County

Boundary Changes[edit | edit source]

For animated maps illustrating Ohio county boundary changes, "Rotating Formation Ohio County Boundary Maps" (1788-1940) may be viewed for free at the website.

Record Loss[edit | edit source]

1841 A courthouse fire may have damaged or destroyed some records.
For suggestions about research in places that suffered historic record losses, see:

Resources[edit | edit source]

Bible Records[edit | edit source]

Biography[edit | edit source]

Business Records and Commerce[edit | edit source]

Cemeteries[edit | edit source]

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

Online Grave Transcripts Published Grave Transcripts County Cemetery Directories

Family History Library

Ohio Gravestones


Names in Stone

USGW Tombstones

Billion Graves

Billion Graves
OHGenWeb Tombstone Photos
See Ohio Cemeteries for more information.

Census[edit | edit source]

Historical populations
Census Pop.
1830 5,159
1840 18,128 251.4%
1850 27,104 49.5%
1860 30,868 13.9%
1870 30,827 −0.1%
1880 36,947 19.9%
1890 40,869 10.6%
1900 41,163 0.7%
1910 42,421 3.1%
1920 43,176 1.8%
1930 47,941 11.0%
1940 48,499 1.2%
1950 52,978 9.2%
1960 59,326 12.0%
1970 60,696 2.3%
1980 61,901 2.0%
1990 59,733 −3.5%
2000 58,683 −1.8%
2010 56,745 −3.3%
Source: "".

Church Records[edit | edit source]

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, see Ohio Church Records.

Catholic[edit | edit source]


Reed Assumption Church is sometimes mentioned as being in Reedtown, but it is really in the nearby country west of Reedtown, which is called the Reed area. There was a church, school, and cemetery that were called Reed Assumption until the parish was closed in 2005. The cemetery is still called Reed Assumption. The church building is still there, but not the school. No other buildings are left, except the church and maybe the rectory. The frame school was torn down in the 1960s (when a new school was built to serve the area and the parishes of St. Sebastian, Reed Assumption, and Marywood-St. Michaels. It was a public school system known as Seneca-Huron because St. Sebastian (Bismark) was in Huron County and Assumption (Reed) and St. Michael's (Franks) were in Seneca County. The public school system was formed earlier (late 1940s?) for financial reasons, but all the teachers were Catholic nuns and they had Mass and religion classes every day. The convent house was moved a mile or so away and is used as a private home. It is a few miles west of Reedtown. Reedtown is on a state highway and is a very small unincorporated village. The only remaining business is Reedtown Tavern and maybe a car/machine repair shop. However, quite a few homes are still there.

A couple miles away in the country is a place called Frank's Corner. This area is also known as Marywood. In the earliest times, it was called Thompson (Township). The church and the cemetery there were called St. Michael's. The cemetery is still known by that name, but when the Reed and Marywood parishes were closed, along with Bismark St. Sebastian, a few years ago, the three were consolidated into a new parish now known as St. Gaspar del Bufalo (yes, that is the way it is spelled). That parish uses the 1800's Gothic style church that was formerly St. Michael's. Quite a few homes are still located there.

These settlements and parishes are adjacent to each other and separated by only a few miles. Both parishes, as well as the adjacent St. Sebastian parish, to the east in Bismark, were very "tightknit" German settlements and remain such today, with many of the same family names since the mid 1800s.

  • 1796–2004 Ohio, Diocese of Toledo, Catholic Parish Records, 1796-2004 at FamilySearch Historical Records – free. This collection includes images of parish registers recording the events of baptism, first communion, confirmation, marriage, and death in the Diocese of Toledo (Ohio), Roman Catholic Church. These records are accessed by browsing the images by county. In addition to traditional parish registers, this collection includes miscellaneous cemetery records, Books of the Elect, Professions of Faith, Sick Call registers, etc.

Court Records[edit | edit source]

Emigration and Immigration[edit | edit source]

Ethnic, Political, or Religious Groups[edit | edit source]

Gazetteers[edit | edit source]

Genealogy[edit | edit source]

History[edit | edit source]

Local histories are available for Seneca 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.

Local Histories[edit | edit source]
  • Baughman, Abraham J., History of Seneca County, Ohio: A Narrative Account of Its Historical Progress, Its People, and Its Principal Interests,(Seneca, Ohio: Lewis Publishing Company, 1911). Digital copy at Google Books Internet Archive
  • Seneca County Chapter, Ancestral Pioneer Men and Women of Seneca County, Ohio: Including Proven First Families, (Tiffin, Ohio: Ohio Genealogical Society. Seneca County Chapter, 1987). FHL fiche 6087943; book 977.1 A1 no. 265

Land and Property[edit | edit source]

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.

Maps[edit | edit source]

Wood CountySandusky CountyErie CountyHancock CountyWyandot CountyCrawford CountyHuron CountyOH SENECA.PNG
Click a neighboring county
for more resources

Military[edit | edit source]

Civil War[edit | edit source]

Servicemen from Seneca 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 Seneca County.

– 8th Regiment, Ohio Infantry, Company A
– 123rd Regiment, Ohio Infantry
Company D
Company I
Company K
World War I[edit | edit source]

Naturalization and Citizenship[edit | edit source]

Newspapers[edit | edit source]

Seneca 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 Memory. 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 and Obituaries. Online Newspapers
Online Newspaper Abstracts
Newspaper Extracts and Abstracts in Book Form

Obituaries[edit | edit source]

Periodicals[edit | edit source]

Probate[edit | edit source]

From 1797 or the creation of the county, probate records were held by the Court of Common Pleas. After 1852, records are held by the {{{1}}} County Probate Court. Records include wills, estates, guardianships, naturalizations, marriage, adoption, and birth and death records (1867-1908 only). The records may give the decedent's date of death, name of spouse, children, parents, siblings, in-laws, neighbors, associates, relatives, and their place of residence.

See Ohio Probate Records for information about how to use probate records. Online Probate Indexes and Records

Finding More Probate Records[edit source]

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

Public Records[edit | edit source]

Repositories[edit | edit source]

Courthouse[edit | edit source]

Seneca County Courthouse
103 S Washington Street
Tiffin, OH 44883-2354
Phone: 419.447.0671

Probate Judge has birth, marriage, and probate, 
County Health Department has death records;
Clerk Court has divorce and court records from 1826;
County Recorder has land records[4]

Family History Centers[edit | edit source]

Family History Centers provide one-on-one assistance, free access to center-only databases, and to premium genealogical websites.
FamilySearch Affiliate Libraries have access to most center-only databases, but may not always have full services normally provided by a family history center.

Local Centers and Affiliate Libraries

For additional nearby Family History Centers, search online in the FHC directory. Put your town name in the top search box.

Libraries[edit | edit source]
Museums[edit | edit source]
Societies[edit | edit source]

Seneca County Chapter Ohio Genealogical Society
P. O. Box 157
Tiffin, OH 44883-0841

Online Genealogy Research Groups[edit | edit source]

Taxation[edit | edit source]

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.

Finding More Tax Records

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

Vital Records[edit | edit source]

Birth[edit | edit source]

Online Birth Indexes and Records

Original Birth Records on Microfilm

Marriage[edit | edit source]

Online Marriage Indexes and Records

Original Marriage Records on Microfilm

Death[edit | edit source]

Online Death Indexes and Records

Finding More Vital Records

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

Original Death Records on Microfilm

Divorce[edit | edit source]

Websites[edit | edit source]

References[edit | edit source]

  1. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Seneca County, Ohio. Page 540-547 At various libraries (WorldCat); FHL Book 973 D27e 2002; Alice Eichholz, ed. Ancestry’s Red Book: American State, County, and Town Sources, Third ed. (Provo, Utah: Ancestry, 2004), 531-533.
  2. Genealogy Trails History Group, “Seneca County, Ohio Genealogy and History”, accessed 2/27/2017.
  3. Wikipedia contributors, "Seneca County, Ohio," in Wikipedia: the Free Encyclopedia,,_Ohio, accessed 14 January 2019.
  4. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Seneca County, Ohio. Page 545 At various libraries (WorldCat); FHL Book 973 D27e 2002.