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If you would like to help support MCGS, your contribution will go towards providing educational programs, special events and expanding our online resources.

There are several ways to help us out!


Donations to the Marin County Genealogical Society are tax deductible as contributions under section 501(c)(3) of the IRS code. Tax ID #94-2516532.

We truly appreciate any monetary donations. Your monetary gift can be made for any amount.  Donate online by using the form at the bottom of this page or you may mail a check to :

Marin County Genealogical Society

PO Box 1511

Novato, CA 94948


The Society accepts publications related to genealogical research. In particular, items relating to Marin County and/or neighboring counties would be valuable. These can include books, maps, and/or microfilms. MCGS accepts only certain periodicals. A list of accepted periodicals will be provided upon request.

Board approval is needed to accept any personal research records and documents. 

MCGS does not accept artifacts, informally published documents, digital representations of publications, or photographs, unless part of a personal research record which has been approved by the Board.

Other institutions, such as the Anne T. Kent California Room Digital Archive, and the Marin History Museum may accept artifacts of local historical interest.

Items donated to MCGS Research Library become property of MCGS. Librarians have the right to determine a donation’s inclusion or not in our collection, its being cataloged or not, and its retention and disposal schedule. 

Usually donations to the MCGS Research Library have nominal monetary value. If a donor requests a confirmation of a donation, a letter will be sent, without specifying any monetary value.

We are a library rather than a historical society. Our focus is principally items easily used within the Library for research purposes, both of a general and of a regional interest related to genealogy and family history. We strive to meet the Society’s Mission Statement to “Encourage stewardship of genealogical holdings”.


Now you can donate to MCGS every time you shop on Amazon at no cost to you!

The AmazonSmile Foundation will donate 0.5% of the purchase price from your eligible purchases to your chosen charity.  MCGS has been added as a charitable organization under the AmazonSmile program.

It is easy to set yourself up to donate to MCGS (for free!) with these easy steps: 

    1. Go to "smile.amazon.com". (Every time! Save the shortcut if it will remind you.)
    2. Sign in with your existing Amazon user id and password.
    3. On your first visit you need to select a charitable organization. Under "pick your own charitable organization", type in "Marin County" and click on the search button. 
    4. Scroll down to find "Marin County Genealogical Society" and click on select. Thank you for your contributions! 


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