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Vítáme Vás! (We welcome you!)

Research and connect with families from the Czech and Slovak ancestral lands.

CGSI focuses on the areas of present-day Czech Republic and Slovakia. This includes Czech (Bohemian), German-Bohemian (Böhmisch), Hungarian, Jewish, Moravian, Rusyn (Ruthenian), Silesian, and Slovak ancestry.

CGSI has over 2,000 members residing in the United States, Canada, Czech Republic, Slovakia, and other countries, providing a vast networking opportunity to learn and share information, and connect with fellow members.

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Czechoslovak Genealogical Society International (CGSI) wants to help you research and connect with your family history.

We are dedicated to genealogical research and interest in descendants of ethnic groups with roots from the Czech and Slovak ancestral lands of Central Europe.

Czech and Slovak Republic (Outlines with Maps)
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What Members Say

Prague in Springtime
In a short time my membership in CGSI has paid off big time.
Ron B., Garland, Texas, USA

News & Events

Please join CGSI at 10 AM Central on Saturday, May 21, 2022 for "Our Ukrainian Cousins: Understanding Cultural & Historical Ties  Across…
Recordings of two presentations given as part of the "The Roots of Medicine" CGSI webinar on February 26, 2022 are now available for on-demand viewing by members.
MGC returned to normal operating hours as of September 1. All patrons are required to wear a mask in the MGC effective October 18.
May
21

CGSI Quarterly Program "Our Ukrainian Cousins: Understanding Cultural & Historical Ties Across Borders" (Webinar)

Please join CGSI at 10 AM Central on Saturday, May 21, 2022 for "Our Ukrainian Cousins: Understanding Cultural & Historical Ties  Across…
May
24

NGS 2022 Family History Conference (conference)

NGS 2022 Family History Conference will be held in Sacramento, California. Some of the conference days will also be accessible online from your home.
May
24

TCHCC presents Pardubická Muzika Brass Band (concert)

Texas Czech Heritage & Cultural Center (TCHCC) invites you to enjoy the Pardubická Muzika Brass Band from Pardubice Conservatory, Czech Republic at our Sanford Schmid Amphitheater in La Grange, Texas.
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