Purchase a CGSI Membership


Join CGSI to build on the vast knowledge and experience of several thousand members, as well as access the valuable information in our quarterly journal and our research collection. 

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


Membership Types


Membership automatically expires at the end of the purchased term. A new membership must be purchased before the expiration date in order to prevent loss of member benefits.

Would you like to purchase a membership by mail?
Download this PDF for a membership application to print.

Gift Membership

Gift Membership can be purchased for new members. A Gift Membership may not be purchased for existing or past members.

CGSI welcomes members from anywhere. If you live outside the US or Canada, please contact membership@CGSI.org for arrangements to purchase a membership.


CGSI Membership Levels and Terms

Base Membership

Term Individual Household Sponsor
1 Year $35 $40 $55
2 Years $65 $70 $95
3 Years $90 $95 $125

Base Membership plus U.S. First Class Postage

Term Individual Household Sponsor
1 Year $45 $50 $65
2 Years $85 $90 $115
3 Years $120 $125 $155

Base Membership plus Canada First Class Postage

Term Individual Household Sponsor
1 Year $50 $55 $70
2 Years $95 $100 $125
3 Years $135 $140 $170

Naše rodina (Our Family) is our quarterly journal publication, provided to every member. It contains articles on genealogical research, emigration, language, traditions, history, and culture. Each issue centers around a theme. Find out more about Naše rodina, or view an index of all articles. That’s over 900 articles on a full range of genealogy and cultural topics.

The CGSI Digital Library in the member-only secured portion of our website contains over 100 full-length presentations delivered at our conferences, symposiums, and quarterly programs. This is the only place to access these unique presentations by genealogy professionals from across the United States, Czech Republic, and Slovakia. In addition, we regularly add digitized out-of-print books and articles to assist you in your research and cultural knowledge.

CGSI’s Research Collection is located at:

Minnesota Genealogy Center
1385 Mendota Heights Road
Mendota Heights, MN  55120-1367

Our Research Collection includes many valuable research sources:

  • maps
  • gazetteers
  • Berní rula (1654 census index)
  • Soupis (1651 and 1793 census indices)
  • ship passenger list books
  • town and village books
  • fraternal organization microfilm
  • over 200 family histories

Admittance to this physical library is free to CGSI members. Find out more about the Research Collection.

Research Materials are available for sale by postal mail, via our online Shop, and at our meetings and conferences, as well as our sales table at a variety of festivals and ethnic events across the United States each year. Some of these items are difficult to find and not available elsewhere. CGSI has translated and published a number of the books that are for sale, including History of Czechs in America, and History of Slovaks in America.

We are currently working on adding more passenger lists, member surnames, and church records. The Member Surname database consists of family names our members are researching. Members are encouraged to submit their family name, location (city and country) they were born, married, died, or lived in Czechoslovakia, and the location they settled in when they immigrated.

Pioneer Family and Century Family Certificates: These certificates may be applied for by descendants of immigrants from the region known as Czechoslovakia that entered the North American continent prior to 1871 (Pioneer Family), or 100 years prior to the date of application (Century Family). Learn more about Family Certificates. To apply, print out the certificate application form (PDF).

CGSI Message Board is where members may post and read messages regarding research, family names, place names where family lived, or resources for other researchers.

Meetings, Symposiums, and National Conferences, organized and sponsored by CGSI, feature presentations by very knowledgeable speakers to help the beginner or the more advanced family history researcher become more successful. Members receive a members-only reduced rate on their attendance fees. See Events and Festivals for more information.

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.
Charles Bridge in Prague