Mercer County, Missouri Genealogy

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

Description
The County was named for John Francis Mercer. The County is located in the north central area of the state.

County Courthouse
Mercer County Courthouse 802 E Main Street Princeton, MO 64673 Phone: 660-748-3425 Mercer County Website County Clerk has birth records 1883-1894 and death records 1883-1891. Clerk Circuit Court has marriage, divorce, court, land records. Circuit Court, Division 2, has probate records.

Populated Places
For a complete list of populated places in Mercer County, MO, including small neighborhoods and suburbs, visit HomeTown Locator. The State Historical Society of Missouri has information on historical Missouri place names for all 114 Missouri Counties. The following are the most historically and genealogically relevant populated places in this county:

Biographies

 * The Crime of Ira Sexton : containing Life history and last statements by Himself. [S.l. : s.n., 1898?]. Available online at FamilySearch

Cemeteries

 * Missouri Cemeteries Missouri Access Genealogy
 * ?-2008 Cemetery records of Mercer County, Missouri by cemetery and by surname

Census Records

 * 1732-1933 at FamilySearch — index and images
 * Index of Mercer County, Missouri census records 1850, 1860, 1870, 1880, 1900, 1910, 1920 and 1930 censues of Mercer County. Includes 1922 Atlas/Plat book Mercer Co. Mo. with index of landowners.

Church Records
List of Churches and Church Parishes


 * FamilySearch Places

Catholic Princeton


 * 1871-1876 Princeton Catholic Church Baptism Index 1871-1876. Batch  at FamilySearch.

Court Records

 * 1800-1991 at FamilySearch — index and images

Local Histories

 * A Brief History of Mercer County, Missouri. Available online at FamilySearch
 * History of Mercer County, Missouri. [n.p., 1911?]. Available online at FamilySearch
 * Mercer Centennial, 1872-1972. 1972. [Princeton, Missouri] : Mercer County Genealogical &amp; Historical Society (MO). Available online at FamilySearch

Maps and Gazetteers

 * Maps of Missouri (1804-1889)
 * Map of Mercer County townships (Histopolis)
 * The University of Missouri Digital Library has digital copies of Missouri county plat books (ca. 1930) for all Missouri counties including Mercer County. The city of St. Louis is not included in this collection.
 * FamilySearch Places:Cities and Towns- How to Use FS Places

Military Records

 * 1900-1941 at FamilySearch — images

Civil War
Online Records


 * 1861-1865 at FamilySearch — index
 * 1861-1865 at FamilySearch — index
 * 1911-1938 at FamilySearch — index and images

Regiments

Service men in Mercer County, Missouri 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 Mercer County, Missouri:

World War II

 * 1940-1945 at FamilySearch — index and images
 * 1941-1946 at FamilySearch — index and images

Naturalization and Citizenship

 * 1800-1991 at FamilySearch — index

Probate Records
Online Probate Records


 * 1750-1988 at FamilySearch — images
 * 1766-1988 Missouri Wills and Probate Records 1766-1988 at Ancestry — index and images ($)

Social Security Records

 * 1935-2014 at FamilySearch - How to use this collection; index. Also at Ancestry, findmypast, Fold3, GenealogyBank, MyHeritage, and Steve Morse. Click here for more information.
 * 1936-2007 U.S., Social Security Applications and Claims Index, 1936-2007 at Ancestry ($) — index, click here for more information.

Birth

 * 1817-1939 at FamilySearch — index
 * 1827-1935 at FamilySearch — index
 * 1851-1910 Missouri Birth Records, 1851-1910 at Ancestry — index/images ($)
 * 1883-1894 Mercer County Birth Index 1883-1894. Batches and  at FamilySearch.

Marriage

 * 1750-1920 at FamilySearch — index
 * 1776-1988 Missouri, United States Marriages at FindMyPast — index $
 * 1800-1991 at FamilySearch — index and images
 * 1805-2002 Missouri, Marriage Records, 1805-2002 at Ancestry ($)
 * 1844-1885 - Mercer County Marriage Book A Index 1844-1885. Batch at FamilySearch.
 * 1850 Missouri Marriages to 1850 at Ancestry — index ($)
 * 1898-1932 Mercer Co. Missouri index of marriage books A, G, H, I and J listed by grooms and by brides

Death

 * 1834-1910 Missouri, Death Records, 1834-1910 at Ancestry — index/images ($)
 * 1867-1976 at FamilySearch — index
 * 1883-1894 Mercer County Death Index 1883-1894. Batch at FamilySearch.
 * 1883-1930 at FamilySearch — index and images
 * 1910-1960 Missouri Death Certificates, 1910 - 1960 at MyHeritage ($) — index
 * Missouri State Archives provides on-line access to Missouri Death Certificates more than 50 yrs old starting in 1910.

Societies
Mercer County Genealogical and Historical Society c/o Mercer County Library 601 Grant Street Princeton, MO 64673 Phone: 660-748-3725

Websites

 * Missouri Digital Heritage. Free. digital images of many types of records from institutions across the State
 * Mercer County MO Genealogy Research. Contains information for researching genealogy in Harrison County MO, Census, bios, obituary, birth, death, marriage, maps, and other records
 * MOGenWeb. Free. Data may be submitted by individuals or complete transcriptions
 * USGenWeb Archives. Free. Data may be submitted by individuals or may be complete transcriptions
 * . Free. - The FamilySearch catalog contains descriptions and access information for all genealogical materials (including books, online materials, microfilm, microfiche, and publications) in their collection.  Use Historical Records to search for specific individuals in genealogical records
 * RootsWeb resources. Free. Data may be submitted by individuals or may be complete transcriptions
 * Linkpendium. Free. Click links. Some sites they link to may have fees ($)
 * CyndisList. Free. Click links. Some sites they link to may have fees ($)
 * StateofUS. Free. family history resources and government records
 * Missouri Genealogy. Free. Click links. Some sites they link to may have fees ($)