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Best Genealogy Sites to Search Records for O'Connor Surname / Last Name

Learn where genealogists search family records for your "O'Connor" surname & last name. Here are trusted sources for genealogy record search by YourRoots data.

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Top Genealogy Sources for Records for O'Connor Surname / Last Name

We’ve compiled data from YourRoots Map to determine which genealogy sites and sources are most frequently used to research the “O'Connor” surname. The list below is sorted by popularity, but remember—even lesser-known resources can be incredibly helpful. Genealogy research is personal and unique, so you never know where you might find that important record.
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Learn more about link surname / last name origin, history, and meaning on YourRoots Map


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Where to Search Records for O'Connor Surname / Last name for free: FamilySearch availability analysis

Below is a comprehensive list of popular genealogy sources alogside with which one is available on FamilySearch for free.

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The full list of genealogy record sources for O'Connor Surname / Last name


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1910 United States Federal Census
1920 United States Federal Census
1930 United States Federal Census
1880 United States Federal Census
1900 United States Federal Census
1881 England Census
U.S., Social Security Death Index, 1935-2014
Kansas, U.S., State Census Collection, 1855-1925
Geneanet Community Trees Index
U.S., Public Records Index, 1950-1993, Volume 1
U.S., Public Records Index, 1950-1993, Volume 2
1940 United States Federal Census
U.S., Index to Public Records, 1994-2019
U.S., Find a Grave® Index, 1600s-Current
1891 Scotland Census
1901 Scotland Census
England & Wales, Civil Registration Birth Index, 1916-2007
U.S., Veterans' Gravesites, ca.1775-2019
England & Wales, Civil Registration Marriage Index, 1916-2005
U.S., Obituary Collection, 1930-Current
U.S., Phone and Address Directories, 1993-2002
U.S., World War I Civilian Draft Registrations, 1917-1918
Missouri, U.S., Marriage Records, 1805-2002
New York, U.S., State Census, 1915
U.S., World War II Army Enlistment Records, 1938-1946
Australia, Electoral Rolls, 1903-1980
1850 United States Federal Census
1871 England Census
Australia, Death Index, 1787-1985
Kansas, U.S., Compiled Marriage Index from Select Counties, 1854-1873
U.S., World War I Draft Registration Cards, 1917-1918
Maine, U.S., Marriage Index, 1892-1996
U.S., City Directories, 1822-1995

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