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McClain County, Oklahoma
Genealogy, History & Facts
County Vital Records ∣ County Census Records ∣ County Courthouse and Government Records ∣
County Societies, Family History Resources and County Genealogy Links
McClain County, Oklahoma Facts
When was McClain County, OK Created?
McClain County was established on July 16, 1907 from Chickasaw lands.
What is the County Seat of McClain County, OK?
The County Seat is located in Purcell and the county government website is http://mcclain-co-ok.us/
What counties are adjacent to McClain County, OK?
Bordering Counties are Cleveland County, Pottawatomie County, Pontotoc County, Garvin County, Grady County.
McClain County, OK Vital Records
Where can find McClain County Birth, marriage, Divorce and Death Records?
McClain County vital records can be found at the Oklahoma Office of Vital Records has copies of birth, and death records since October 1908. County marriage and divorce records are located in the local Clerk of Courts officeThere is a fee for each copy requested. Please refer to the information to the Statewide Vital Records in Oklahoma for current fees and application process. Birth, marriage, and death records are connected with central life events.
You can search online for McClain County Birth, Marriage, Divorce or Death Records. You can also Order Electronically Online or can download an application for Oklahoma Birth Certificate or Death Certificate Applications to mail.
McClain County, OK Census Records
What McClain County, OK census records are available?
There are many types of census records for McClain County guide you in researching your family tree. Federal Population Schedules are available for 1910, 1920, 1930, 1940.
Another census resource is the Oklahoma Territorial Census, 1890 and 1907. You will discover free online in addition to printable census forms that can help with your research. See Also Oklahoma Census Records Research Guide.
McClain County, OK Courthouse and Government Records

What genealogical records can I find in the McClain County Courthouse?
Researchers frequently overlook the great importance of McClain County court, probate, and land records data as a useful resource of ancestry and genealogy information. Buried away in Oklahoma courthouses and archives everywhere are the ambitions and frustrations of countless Oklahoma residents. The possibilities are excellent that your forefathers have left a comprehensive document of at least a number of facets of their lives in the McClain County court records. Even if your forebears is not referred to in a Court case, contemplate all of the other procedures that could have lead to him or her to appear in court records. See Also Oklahoma Courthouse Records Research Guide.
- McClain County Courthouse (all departments listed below are located here, unless otherwise noted)
- Address: 121 N 2nd Ave, Purcell, OK 73080
- Phone: (405) 224-7446
- McClain County Clerk’s Office
- Birth / Death Records: 1908
- Land Records: 1903
- McClain County Court Clerk’s Office
- Marriage Records: 1895
- Probate Records: 1895
- Court Records: 1895
- Oklahoma, Applications for Allotment, Five Civilized Tribes, 1899-1907
- BLM Land Records
McClain County, OK Societies and Family History Resources
What genealogical and historical societies, archives, museums, associations and libraries are available for McClain County, OK?
A list of McClain County Historical and Genealogical Societies, Libraries, Archives. See also list of Statewide Oklahoma Archives, Historical & Genealogical Societies.
- Mcclain County Historical And Genealogical Society, 203 W. Washington Street, Purcell 73080; 405/527-5894
- Chickasaw Council House Research Center, PO Box 717 or 209 North Fisher Avenue, Tishomingo, OK 73460; Phone: (580) 371-3351
- Oklahoma Department of Libraries, Division of State Archives and Records, 200 N.E. 18th Street, Oklahoma City, OK 75105
- Oklahoma Historical Society, Oklahoma History Center, 800 Nazih Zuhdi Drive, Oklahoma City, OK 73105
- Oklahoma Genealogical Society, P.O. Box 12986, Oklahoma City 73157-2986
Where can I connect with other McClain County, OK Researchers through message boards and forums?
- https://www.archives.gov/research/census
- Oklahoma State Genealogy Network (facebook.com)
- McClain County, Oklahoma Message Boards (boards.ancestry.com)
- McClain County, Oklahoma Genealogy Forum (genforum.genealogy.com)
What other genealogical resources are available in McClain County, OK?
The following are web links to Genealogy, Records and Resources pertaining to McClain County.
McClain Co. OK Books, Newspapers & Publications
- Oklahoma Newspapers Books & Publications Research Guide
- Oklahoma historical newspaper archives online (newspapers.com)
- Historical Newspapers from Oklahoma (1871–1923) (genealogybank.com)
- McClain County, Oklahoma Books (amazon.com)
- Search Oklahoma Obituaries (1985 to current) (genealogybank.com)
- McClain County Genealogy Books (books.google.com)
McClain Co. OK Cemeteries & Church Records
- Oklahoma Cemetery Research Guide
- McClain Co., Oklahoma Graves (findagrave.com)
- McClain County Tombstone Transcription Project (usgwtombstones.org)
- McClain Co., Oklahoma Cemeteries (Internment.net)
- McClain Co., Oklahoma Cemetery Books (amazon.com)
- Oklahoma Church & Bible Research Guide
- McClain County, Oklahoma Church Books (amazon.com)
McClain Co. OK Family Websites, Pictures & Histories
- Oklahoma Family Group Sheet Project (fgs-project.com)
- Oklahoma, Applications for Enrollment to the Five Civilized Tribes, 1898-1914 (familysearch) These records list the individuals who were accepted as eligible for tribal membership in the “Five Civilized Tribes”: Cherokees, Creeks, Choctaws, Chickasaws, and Seminoles. The records include 101,000 names from 1898-1914 (primarily from 1899-1906)
McClain Co. OK General and History Websites
- See Also State History for Oklahoma
- McClain County, Oklahoma Wikipedia (wikipedia.org)
- Chronicles of Oklahoma (http://digital.library.okstate.edu)
- McClain County, Oklahoma Wiki (familysearch.org)
- McClain Co. OK Genealogy (kindredtrails.com)
- Family History Library (familysearch.org)
- McClain County, Oklahoma (linkpendium.com)
- Cyndi’s List – United States – Oklahoma – Counties – McClain (cyndislist.com)
- McClain County Oklahoma (genealogytrails.com)
- McClain Co. OKGenweb (rootsweb.ancestry.com)
- McClain County Genealogy Queries (cousinconnect.com)
- McClain Co. Data Collections (search.ancestry.com)
McClain Co. OK Maps, Atlases & Gazetteers
McClain Co. OK Military Records
- Oklahoma Military Records Research Guide
- Oklahoma Military Records (fold3.com) will provide access to military records, stories, photos, and personal documents belonging to the Oklahoma individuals that served. Ideal for McClain County genealogists, researchers, historians plus much more.