Welcome to the Jewish Genealogy Society
of Long Island (JGSLI)!

JGSLI was founded in 1985 to encourage and assist the pursuit of Jewish family history. Our goal is to bring together people interested in tracing their Jewish family roots.

We are a non-profit organization, operating through member efforts. We work to educate members and the public regarding the “how to” of finding one’s roots. Please see our full listing of September 2016 - June 2017 programs here.

CoverImageNEW BOOK - Jewish Community of Long Island, a publication in honor of the 30th anniversary of the Jewish Genealogy Society of Long Island, is available from major online booksellers and in many Long Island bookstores. For further information, click YouTube Overview to see how this book can help your genealogy research, a name-index supplement to the book, and a Press Release.


Sunday, March 19, 2:00 – 4:00 p.m. (Mavens 1:30 p.m.)

Mid-Island Y-JCC
45 Manetto Hill Road
Plainview, NY

Sousa Mendes’s List: The Search for Survivors
Speakers: Olivia Mattis

Dr. Olivia Mattis is president and co-founder of the Sousa Mendes Foundation, which works to identify families who received lifesaving visas from the Portuguese diplomat Aristides de Sousa Mendes in Spring 1940. Sousa Mendes, stationed in Bordeaux, France, rescued thousands from the Holocaust -- including 12 members of Dr. Mattis’s family -- by providing them visas to Portugal, a neutral country with a port to the free world. Dr. Mattis will describe Sousa Mendes's heroic efforts, which defied his government’s strict orders and for which he paid steep personal price, and she’ll explain the process of learning more about the refugees.


Sunday, April 30, 2:00 – 4:00 p.m. (Mavens 1:30 p.m.)

Mid-Island Y-JCC
45 Manetto Hill Road
Plainview, NY

The 1939 German Minority Census
Speakers: Michael Simonson

The German Minority Census of 1939 was an enumeration by the Nazi authorities of over 400,000 Jews who lived in Germany, annexed Austria, and the Sudetenland in Spring 1939. It serves today as an important genealogical resource as well as a tool for understanding German-Jewish history and a record of victims of the Shoah. We’ll learn more about the census from Michael Simonson, an archivist at the Leo Baeck Institute in Manhattan, which holds the entire census on microfilm. He works closely with genealogists using the LBI and his genealogical skills have been called upon to solve cases of book restitution to descendants of the families of original owners.

Sunday, November 6, 12:30 – 5:00 p.m.

Jewish Genealogy 101: Four Hours+ to Your Family Roots
JGSLI’s Annual Family History Workshop

Mid-Island Y-JCC
45 Manetto Hill Road, Plainview

A review of the fundamentals of Jewish genealogy. Topics include interviewing relatives; identifying ancestral towns; Holocaust research; using censuses, city directories, ship's manifests, naturalizations, vital records, and other U.S. sources; European records; and internet resources. Early-bird rate (through Oct. 30): $45. After Oct. 30 and at the door: $55. Additional family member: $15. Fee includes a workbook (one per family, on a flash drive), a copy of Avotaynu’s Getting Started in Jewish Genealogy, a light lunch, and 2017 membership dues.

Click here for the 2015 Jewish Genealogy 101 Brochure

Join the Jewish Genealogy Society of Long Island!

Membership Benefits Include:

Free Admission to monthly meetings
Receive periodic Lineage Newsletter
Receive JGSLI Online. A Monthly digital publication with tips and links to online resources
Opportunity to Network with other people and experts in Jewish Genealogy
Advanced notice of our Family Workshop and other special events.
Click here for more information!

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