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ON HIATUS - Mayflower Descendants - Special Interest Group - Monthly

California Genealogical Society & Library

ON HIATUS - Mayflower Descendants - Special Interest...

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Mayflower Descendants 

Special Interest Group

with Robert Trapp 



Monthly, Second Saturdays, 12 pm - 2 pm

Mayflower Descendants Library



Offered by the California Genealogical Society, held at the The Society of California Mayflower Descendants offices across the Hall from the CGS library.


The Mayflower Descendants SIG will focus on Mayflower ancestry and how to join The Society of California Mayflower Descendants.  This SIG is open to all skill levels and meets monthly on second Saturdays from 12 pm - 2 pm, except January, June and December 2020. 


The group will discuss research in New England, parts of Canada and the upper Atlantic seaboard states.  We will be exploring the materials and books at the Mayflower library and computer research websites.  Each month will vary as to subject matter followed by a Q&A session.


Robert or “Bob” Trapp is a native of the San Francisco East Bay (his family has been here since the early 1880's).  He is the father of 3 and grandfather of 5.  He is a member of the General Society of Mayflower Descendants, a member of CGS since 1993, and a member of NEHGS since 2000.  He has worked in the Mayflower Library for the past 4 years and is a Staff Coordinator at the Oakland FamilySearch Library where he has volunteered for 28 years.  He has been a seminar presenter for CGS. 

He is the Governor of the Alameda Colony of California Mayflower Descendants. There were 102 passengers on the Mayflower. He is a descendant of 26 of them. He loves genealogy and helping others find their roots.



We are located in the historic Breuner Building at 22nd Street & Broadway, one block north of the Paramount Theater, in Uptown Oakland. We are just three blocks from the 19th Street BART Station. Parking is free on Saturdays in the lot behind our building. A parking permit will be included with your registration confirmation.





 • Class size is limited to 25.  

 • Special Interest Groups are free to CGS members.

 • Non-members are welcome to attend one meeting at no charge; thereafter, you may join CGS and attend for free or pay $10* for each meeting attended.


Register early to confirm your seat. 



 *Event fee is non-refundable.

Have questions about ON HIATUS - Mayflower Descendants - Special Interest Group - Monthly? Contact California Genealogical Society & Library

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When & Where

The Society of California Mayflower Descendants Offices
2201 Broadway, Suite LL13
Oakland, CA 94612


California Genealogical Society & Library

   Due to concerns about COVID 19, the CGS library is closed through at least mid summer and all CGS classes and events have been canceled through the end of May except for those held with remote conferencing.

Signups for future classes and events are currently on hold.

This closure and cancelation may be extended, so please check our website before visiting.


Connecting people to their diverse family heritage

Whether you have Gold Rush ancestors or have no family connection to California, you will find extensive support for your genealogy research at the California Genealogical Society (CGS) in Oakland. The society offers research services, online indexes and databases, and a research library housing over 38,000 reference materials from California, the United States, and around the world. CGS is a 501(c)(3) nonprofit corporation. The library is conveniently located in Uptown Oakland, one block north of the Paramount Theatre, at 2201 Broadway, Suite LL2. We are three blocks from the 19th Street BART Station.

Phone: (510) 663-1358 

Non-Discrimination Statement

The goal of the California Genealogical Society is to connect people to their family heritage and to promote a spirit of diversity and inclusivity for our members and patrons. The California Genealogical Society does not tolerate discrimination in any form. 


Courtesy Request

In order to maintain a welcoming and healthy environment, please refrain from using scented products at CGS events or in the library.

Photography Notice

California Genealogical Society (CGS) may take photographs, audio recordings, and video footage in our library, classrooms or events for historical records or publicity purposes.  If you do not want to be photographed or filmed, it is the individual’s responsibility to 'opt out' by notifying the event leader or photographer at the event.

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