Jewish Genealogy: The Best Tools to Find Your Roots

The Search for Roots

For most Jewish families, the family tree has a gap. Somewhere between the old country and the new, between the immigration and the assimilation, between the Holocaust and the aftermath, knowledge was lost. Names were changed. Languages were abandoned. Stories were forgotten.

Jewish genealogy is the work of filling those gaps — of reconstructing the family trees that persecution, migration, and time have fragmented. It is detective work, emotional work, and sacred work. And thanks to digitized archives, DNA testing, and online databases, it has never been more accessible.

This guide covers the essential tools and strategies for tracing Jewish family history, whether your roots are Ashkenazi, Sephardic, Mizrachi, or a blend of traditions.

Start with What You Know

Before touching a database, gather what your family already knows:

Interview relatives. Talk to parents, grandparents, aunts, uncles, and cousins — especially the oldest ones. Ask about names, birthplaces, immigration dates, occupations, and family stories. Record these conversations. Memory is the most perishable archive.

Collect documents. Gather birth certificates, marriage licenses, naturalization papers, death certificates, old photographs, letters, passports, and any official documents your family has preserved. These contain clues — exact dates, original spellings of names, and the names of parents and witnesses.

Write down what you know. Create a simple family tree with names, dates, and places. Note where your information is solid and where there are gaps. Those gaps are your research targets.

The Essential Databases

JewishGen (jewishgen.org)

JewishGen is the single most important resource for Jewish genealogy. Operated as a partner of the Museum of Jewish Heritage, it is free to use and contains millions of records.

Key features:

• Family Finder: Register the surnames and towns you are researching. JewishGen will alert you when another researcher registers matching information — potentially connecting you with distant relatives.
• Town Pages: Detailed pages for thousands of Jewish communities, with historical information, maps, photographs, and lists of researchers interested in each town.
• Databases: Searchable databases of vital records, cemetery records, community documents, and more from Jewish communities worldwide.
• Special Interest Groups (SIGs): Groups organized by region — JRI-Poland for Polish research, Gesher Galicia for Galician research, LitvakSIG for Lithuanian research, and many others.

Yad Vashem Names Database (yadvashem.org/names)

For families affected by the Holocaust, Yad Vashem’s Central Database of Shoah Victims’ Names is essential. It contains approximately 4.8 million names of Holocaust victims, compiled from Pages of Testimony (submitted by survivors and family members), community records, and other sources.

Search by name, place of birth, or other details. If you find a relative, the database often includes the name of the person who submitted the testimony — potentially a surviving family member you did not know about.

FamilySearch (familysearch.org)

FamilySearch, operated by The Church of Jesus Christ of Latter-day Saints, is the largest free genealogy platform in the world. Its collection includes millions of digitized records from around the world, including civil records, church records, and census data from countries with significant Jewish populations.

For Jewish genealogy, FamilySearch is particularly useful for:

• Immigration and naturalization records
• Census records from the United States and European countries
• Civil vital records from Poland, Hungary, Ukraine, and other Eastern European countries

Ancestry.com

Ancestry is a paid service, but its collection of digitized records is enormous. For Jewish genealogy, its most useful features include:

• Ellis Island and other immigration records
• U.S. census records
• Military records
• City directories
• User-submitted family trees (which can connect you with other researchers)

MyHeritage (myheritage.com)

MyHeritage, founded in Israel, has a particular strength in international records and European archives. Its collection of Eastern European records is extensive, and its Smart Matching technology can connect your tree to others automatically.

DNA Testing

DNA testing has revolutionized Jewish genealogy. Here is what the major tests offer:

AncestryDNA: The largest DNA database, which means the most potential matches. Excellent for connecting with genetic relatives. Provides ethnicity estimates that can identify Ashkenazi, Sephardic, and other Jewish population markers.

23andMe: Strong ethnicity analysis, including detailed breakdowns of Ashkenazi Jewish ancestry. Also provides health-related genetic information. Good database of potential relatives.

MyHeritage DNA: Growing database with strong European coverage. The company’s integration of DNA results with its genealogical records is a major advantage.

FTDNA (FamilyTreeDNA): Offers Y-DNA testing (male-line ancestry) and mtDNA testing (female-line ancestry) in addition to autosomal DNA. These specialized tests can trace specific ancestral lines deep into history.

DNA tips for Jewish genealogy:

• Ashkenazi Jews share significantly more DNA with each other than most populations, which means DNA matches may be more distant than they appear. A match that looks like a third cousin may actually be a fifth or sixth cousin.
• Testing multiple family members (especially older generations) provides more information than testing just yourself.
• Upload your results to GEDmatch (a free comparison tool) to compare across all testing companies.

Specialized Resources

JRI-Poland (jri-poland.org): The Jewish Records Indexing project for Poland has indexed millions of vital records from Polish Jewish communities. Searchable by name and town.

Gesher Galicia (geshergalicia.org): Focused on the historic region of Galicia (now divided between Poland and Ukraine), this organization has indexed cadastral maps, business directories, and vital records.

YIVO Archives (yivo.org): The YIVO Institute for Jewish Research in New York holds one of the largest collections of Eastern European Jewish documents in the world.

Arolsen Archives (arolsen-archives.org): Formerly the International Tracing Service, this archive holds over 30 million documents related to Nazi persecution, including concentration camp records, deportation lists, and displaced persons files. Much of the collection is now searchable online.

National Archives (archives.gov): U.S. immigration records, naturalization records, census records, and military records are accessible through the National Archives.

Research Strategies

Spelling is fluid. Jewish names were transliterated from Hebrew, Yiddish, or other languages into Latin characters by clerks who did not speak the original language. The same name might be spelled five different ways in five different documents. Search broadly.

Names changed. Many Jewish immigrants changed their names — at Ellis Island, at naturalization, or simply through everyday usage. Moshe became Morris. Rivka became Rebecca. Goldsztajn became Goldstein.

Think about the community, not just the individual. Jewish genealogy is often communal genealogy. Research the town, the synagogue, the community records. Your ancestors did not live in isolation — they lived in communities where everyone knew everyone.

Connect with other researchers. Jewish genealogy is a remarkably collaborative field. Join mailing lists, attend conferences (the annual IAJGS International Conference on Jewish Genealogy is the largest), and participate in online forums. Someone researching the same town or surname may have exactly the piece of information you are missing.

The Emotional Journey

Jewish genealogy is not just an intellectual exercise. It is an emotional one. You may discover relatives you never knew about. You may find the names of family members murdered in the Holocaust. You may learn that your family’s cherished origin story is partially or entirely fiction.

The emotions that arise — grief, surprise, connection, confusion — are part of the process. Many genealogists describe the experience as a form of tikkun — repair. By recovering the names and stories of those who came before, you are performing an act of memory that honors their lives and ensures they are not forgotten.

Your family’s story is out there — in archives, in databases, in the DNA you carry. The tools to find it have never been better. The search itself is worthwhile, regardless of what you find.