Union County, New Mexico Genealogy

Guide to Union County, New Mexico ancestry, genealogy and family history, birth records, marriage records, death records, census records, family history, and military records.

Description
Union County was was named “Union” because the citizens were united in their desire for the creation of a new county. The County is located in the northeast area of the state.

County Courthouse
Union County Courthouse 200 Court Street P.O. Box 430 Clayton, NM 88415 Phone: 505.374.9491 Union County Website County Clerk has marriage records from 1894, probate, court and land records District Court Clerk has divorce records.

Populated Places
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:

List of Historic Post Offices and Place Names in Union County
 * A-E
 * F-L
 * M-R
 * S-Z

Census Records
Federal Census Records Federal Censuses were taken for New Mexico starting in 1850. For links to Federal census indexes, see New Mexico Census.

State Census Records
 * 1885 New Mexico Territorial Census 1885 at Ancestry(free)
 * Late 1800s 1800s Arizona and New Mexico Territories Census, Late 1800s ($)

Church Records
List of Churches and Church Parishes
 * FamilySearch Places

Funeral Homes

 * https://www.hassfuneralhome.com/ in Clayton

Land and Property Records
Online Land Records
 * Land Patent Search - index to federal patents and homesteads on the Bureau of Land Management website, some images available
 * 1796 - 1907 - U.S. General Land Office Records, 1796-1907 at Ancestry- index, info taken from Bureau of Land Management website
 * 1863 - 1908 - U.S. Homestead Records 1863-1908 at Ancestry.com - ($), index and images

Maps and Gazetteers

 * FamilySearch Places:Cities and Towns- How to Use FS Places
 * Interactive Formation Boundary Map of New Mexico - shows boundary changes for New Mexico Counties
 * NMGenWeb - historical maps

Revolutionary War

 * 1775 - 1783 - at FamilySearch - images only
 * For more nationwide Revolutionary War databases, see US Military Online Genealogy Records.

Civil War

 * 1861 - 1865 - at FamilySearch
 * For more nationwide Civil War databases, see US Military Online Genealogy Records.

World War I

 * 1917 - 1919 - New Mexico, World War I Records, 1917-1919 at Ancestry($)
 * For more natiowide World War I databases, see US Military OnlineGenealogy Records.''

World War II

 * 1940 - 1945 - at FamilySearch — index and images
 * 1941 - 1945 - World War II Records, 1941-1945 State Summary of War Casualties from World War II for Navy, Marine Corps, and Coast Guard Personnel from: New Mexico
 * 1941 - 1945 - World War II Honor List of Dead and Missing Army and Army Air Forces Personnel from: New Mexico
 * 1941 - 1945 - New Mexico, World War II Records, 1941-1945 at Ancestry($)
 * For more nationwide World War II databases, see US Military Online Genealogy.

Naturalization and Citizenship

 * 1882-1983 - at FamilySearch — index and images

Newspapers
Online Newspapers
 * 1800s-1999 U.S., Newspapers.com Marriage Index, 1800s-1999 at Ancestry - index ($)
 * New Mexico Historical Newspapers at University of New Mexico Digital Repository
 * New Mexico Online Historical Newspapers - identifies historical archived and digitized newspapers available online on both free and pay-to-access websites.

Probate Records
Online Probate Indexes and Records


 * 1801 – 1993 New Mexico Wills and Probate Records 1801-1993 at Ancestry.com — 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

 * 1726 – 1918 at FamilySearch

Marriage

 * 1727 - 1900 New Mexico Marriages 1727-1900 at Ancestry($)
 * 1751 - 1918 at FamilySearch

Death

 * 1788 – 1798; 1838 – 1955 at FamilySearch
 * 1889 - 1945 at FamilySearch - How to Use this Collection; index; Also at: Ancestry ($)

Museums
Herzstein Memorial Museum 22 South Second Clayton, New Mexico, 88415 Telephone: 505-375-2977

Societies
Folsom Historical Society Main Street Folsom, New Mexico, 88419 Website

Websites

 * Union County, NM History, Records, Facts and Genealogy
 * New Mexico Genealogy Network Group on Facebook
 * USGenWeb project. May have maps, name indexes, history or other information for this county. Select the state, then the county.
 * - 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