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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 8</FormAndLineReferenceDesc>
        <ExplanationTxt>| Other Revenues:, Amount:| Advertising income from Review magazine published by us., $625|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 10 - Cash</FormAndLineReferenceDesc>
        <ExplanationTxt>| Description:, Amount:, Grantee Type:, Grantee Name:, Grantee Address:, Activity Type:, Class of Activity Description:, RelationShipDescription:|Grant to the City of Mill Valley to help them pay for historical designation of City Hall, $5800, Organization, City of Mill Valley, 26 Corte Madera Ave. Mill Valley CA 94941, Other, Grant to help pay professional fees for historical designation of City Hall, - |</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>| Other Expenses:, Amount:| Member meetings and socials, $2497| Accounting and tax prep software, $400| Web and email communication expense, $1073| Payment processing and Zoom fees, $494| First Wednesday speaker fees, $1600| Insurance, $1525| Tax filing and registration fees, $109| Advertising and signage, $643| Oral histories, $216| Membership fees, $252| Miscellaneous, $122|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II, line 24</FormAndLineReferenceDesc>
        <ExplanationTxt>| Explanation:, BOYAmount:, EOYAmount:| Prepaid ISBN licenses, $206, $206|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II, line 26</FormAndLineReferenceDesc>
        <ExplanationTxt>| Explanation:, BOYAmount:, EOYAmount:| Prepaid dues deferred revenue, $2705, $4455| Taxes payable, $26, $80| Accrued expenses, $0, $464|</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>