Czechoslovak Genealogical Society International (CGSI) is dedicated to genealogical research and interest in descendants of ethnic groups with roots from the Czech and Slovak ancestral lands of Central Europe.

Join us at the 2025 CGSI 20th Genealogical/Cultural Conference! The conference will be held October 28–November 1, 2025, at the DoubleTree by Hilton Hotel Kansas City - Overland …

Czechoslovak Genealogical Society International (CGSI) P.O. Box 16225 St. Paul, Minnesota 55116-0225 USA (651) 964-2322 . MGS Partner

Join us at the 2025 CGSI 20th Genealogical/Cultural Conference! The conference will be held October 28–November 1, 2025, at the DoubleTree by Hilton Hotel Kansas City - Overland Park located outside of Kansas City, Kansas.

For more than thirty years, CGSI conferences provide a chance to learn, share, and connect with the genealogy, history, and culture of those from the Czech and Slovak ancestral lands of Central Europe.

CGSI's collection of Denní hlasatel issues have been created from digitized microfilms. Researching in this collection can be made easier by becoming familiar with the strategies and tips shared in Reading the Denní Hlasatel Archive .

Below are strategies and tips for using CGSI's Denní Hlasatel Archive. This archive is only available to members who are logged into CGSI.org.

Naše rodina (Our Family) is the quarterly journal published by CGSI. Each issue contains multiple articles and stories relating to genealogy, history, and culture. CGSI members have access to digital copies of every issue published since 1989.

Members have access to all the resources of CGSI's Digital Library. Browse its contents below, or use the filtering tools to find just what you need.

The Czechoslovak Genealogical Society International (CGSI) was founded on March 26, 1988 with an organizational meeting at the historic CSPS (Czech-Slovak Protective Society) Hall in St. Paul, Minnesota.More than 20 attended this initial meeting.