Why Join


Thinking of becoming a member? Take a look at all CGSI has to offer, and let us answer any questions you might have.


Quarterly Journal

Every issue of CGSI's quarterly journal publication Naše rodina (Our Family) is available to CGSI members. CGSI members receive the latest edition as soon as it is published and have access to a digital copy of every issue since 1989.

Each issue contains multiple articles written by a wide variety of authors covering topics relating to genealogy, history, and culture. You can review a list of over 30 years of articles and their authors in the Naše rodina & Ročenka Index.

Sample articles:

Display of Naše rodina covers

CGSI Digital Library

Family Histories
CGSI has collected and digitized over 130 family histories. These can help find family or serve as an inspiration for preserving your own family history.

Blank Family Tree

Over 1,000 articles are available in digital format. These are from CGSI's journal publications Naše rodina and Ročenka.

Cover of June 1997 Naše rodina

Presentation Recordings
Watch hundreds of hours of presentation video recordings across a wide variety of interesting and relevant topics.

In-person presentation

Researching and Learning
The Digital Library is designed to be a repository of information curated to help you research and learn about Czech and Slovak genealogy, history, and culture.

Connecting ideas
Member Benefits

Czechoslovak Genealogical Society International (CGSI) is the leader in providing educational, cultural, historical, and genealogical resources, with a special emphasis in providing opportunities for our members to discover their heritage.

Learn. Share. Connect.

Members can attend our biennial conference, quarterly program webinars, regional meetups, and enjoy benefits such as the following:

archive shelving
Research Databases
Over 40,000 records are available for members to search for family history and relatives.
Old European church in a city.
Digital Library
CGSI has a large collection of cultural and historical media for members to use in their research.
Charles Bridge in Prague
Message Board
Connect with other members and professional researchers as you conduct family research.
Display of Naše rodina covers
CGSI Quarterly Journal
Naše rodina (Our Family) is the quarterly journal published by CGSI. View current and past issues online.

What Members Say

I asked CGSI for help finding my great grandparents from Bohemia. Before I knew it the family tree was carried back to the 1700s.
David N., St. Paul, Minnesota, USA

Research Databases

Members can search the four research databases below for historical and family records. You must be logged-in as a member to view and search these CGSI proprietary databases.

Prague castle at night
CGSI Member Surnames
This searchable database is an index of surnames submitted by CGSI members since 1988.
Immigrant Ship
Leo Baca's Czech Immigration Passenger Lists
This ten-volume set, authored by Leo Baca, contains approximately 208,000 immigrant names and their arrival information including arrival date, port, ship, and family members.
Photo of St. Paul Cathedral
Archdiocese of Saint Paul, Minnesota Church Records
This searchable database is an index of church records of baptisms, marriages, and deaths provided to assist the researcher in rapidly locating relatives and ancestors.
Photo of Archive Boxes
Karleen Chott Sheppard Upper Midwest Database
This database includes birth, marriage, death, and other records Karleen gleaned from a variety of primarily upper-Midwest sources covering records from the late 1800s through about 2007.

Join or Renew Today!

Collage of photographs