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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.

Pocket watch and photograph
Czechoslovak Genealogical Society International (CGSI) is a member-based organization.

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.

CGSI conference attendees at a table
Sections

What Members Say

Litomyšl
Because of CGSI, in six months I went from knowing nothing about my Czech ancestors to learning I had relatives who were serfs on the Litomyšl estate.
JoAnn P., Cadott, Wisconsin, USA

News & Events

CGSI Research Collection Closed Again Through January 8

We are sorry to inform everyone that the MGC is now closed again to all members and visitors.

Proposed CGSI Bylaw Amendment

CGSI Bylaw Amendment proposed for Annual Membership Meeting on October 24, 2020.

CGSI Slate of Candidates for Office 2021-2023

Slate of Candidates for Office 2021-2023 announced for Annual Membership Meeting election on October 24, 2020.
Dec
06

Slovenská Vilija (Slovak Christmas Eve) Dinner

Annual Slovenská Vilija (Slovak Christmas Eve) Dinner in Cleveland, Ohio served as a take-out dinner this year.
Dec
06

DAHA & BBLA Present "Czech Holiday Party" (Online Event)

Watch online a holiday sing-along and a film about the making and presentation of the American premiere of Georgius Zrunek's festive 18th century tri-lingual Christmas Mass.
Dec
13

SHCSJ Presents "Hanukkah 2020 with Pressburger Klezmer Band" (Online Event)

Pressburger Klezmer Band is a famous Slovak ensemble. Get your latkes, donuts, and computers ready to enjoy klezmer music, conversation, and lighting Hanukkah candles!
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Charles Bridge in Prague