The Texas State Capitol

Form 990-PFTax year 2024EIN 74-6084245

William Knox Holt Foundation

A private foundation in San Antonio, TX. Its return for tax year 2024 lists 24 grants and $336,000 paid in grants.

Tax year 2024 (period ending Dec 31, 2024), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Accepts applications

The return gives an application contact and rules, as below.

Contact
William Knox Holt Foundation Attn C
PO Box 90070
San Antonio, TX 78209
(210) 601-3702
Form and materials
Letter request stating the name of the organization, address, purpose of grant and background information on the organization.
Deadlines
None
Restrictions
Charitable fields: education, medical research, social services, arts & sciences geographical areas: california, texas, colorado, and new york

Assets and giving by year

6 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2024

    $336,000

    Grants listed
    24
    Assets, end of year
    $4,353,241
  • Tax year 2023

    $332,500

    Grants listed
    21
    Assets, end of year
    $4,612,890
  • Tax year 2022

    $300,050

    Grants listed
    21
    Assets, end of year
    $5,011,324
  • Tax year 2021

    $325,050

    Grants listed
    23
    Assets, end of year
    $5,428,797
  • Tax year 2020

    $120,000

    Grants listed
    9
    Assets, end of year
    $5,665,898
  • Tax year 2019

    $277,750

    Grants listed
    15
    Assets, end of year
    $5,917,653

Grants paid in 2024

24 grants, largest first

As listed on the return.

  1. Colorado Rocky Mountain School IncCarbondale, CO

    To fund organization's exempt purpose.

    $50,000
  2. Monterey Bay Aquarium FoundationMonterey, CA

    To fund organization's exempt purpose.

    $35,000
  3. Just Keep Livin FoundationSherman Oaks, CA

    To fund after school programs.

    $30,000
  4. University of the PacificStockton, CA

    To fund the library project.

    $25,000
  5. Mobile Loaves & Fishes IncAustin, TX

    To fund community first village program.

    $20,000
  6. University of California Berkeley FoundationBerkeley, CA

    To fund the lawrence hall of science outdoor nature lab.

    $20,000
  7. San Joaquin Pioneer & Historical SocietyStockton, CA

    To fund organization's exempt purpose.

    $15,000
  8. Witte MuseumSan Antonio, TX

    To fund organization's exempt purpose.

    $15,000
  9. Austin Ymbl Sunshine CampAustin, TX

    To fund organization's exempt purpose.

    $10,000
  10. CMC Foundation of Central TexasSaint Louis, MO

    To fund organization's exempt purpose.

    $10,000
  11. McNay Art MuseumSan Antonio, TX

    To fund art-based education programs.

    $10,000
  12. San Antonio Botanical Garden Society IncSan Antonio, TX

    To fund imaginary worlds.

    $10,000
  13. San Antonio River FoundationSan Antonio, TX

    To fund the confluence park program.

    $10,000
  14. Texas A&M University - Kingsville Foundation IncKingsville, TX

    To fund the caesar kleberg wildlife research center's holt-atherton memorial fund.

    $10,000
  15. The Board of Trustees of the Leland Stanford Junior UniversityRedwood City, CA

    To fund organization's exempt purpose.

    $10,000
  16. The Explorer's Club - Texas ChapterAustin, TX

    To fund organization's exempt purpose.

    $10,000
  17. The Holdsworth CenterAustin, TX

    To fund organization's exempt purpose.

    $10,000
  18. Film Society of Austin IncAustin, TX

    To fund organization's exempt purpose.

    $7,500
  19. Muny ConservancyAustin, TX

    To fund summer camp scholarships.

    $7,500
  20. Greater Austin Performing Arts Center IncAustin, TX

    To fund organization's exempt purpose.

    $5,000
  21. Mind Science FoundationSan Antonio, TX

    To fund organization's exempt purpose.

    $5,000
  22. Musical Bridges Around the World IncSan Antonio, TX

    To fund youth programs.

    $5,000
  23. Pease Park ConservancyAustin, TX

    To fund organization's exempt purpose.

    $5,000
  24. Texas Biomedical Research InstituteSan Antonio, TX

    To fund organization's exempt purpose.

    $1,000

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Education3 grants $55,00024% of the total
  2. Arts and culture5 grants $42,50019% of the total
  3. Philanthropy and grantmaking2 grants $40,00018% of the total
  4. Animals1 grant $35,00015% of the total
  5. Environment2 grants $20,0009% of the total
  6. Public affairs2 grants $17,5008% of the total
  7. 2 other causes3 grants $16,0007% of the total

By State

Grants to organizations with a US address, latest year.

  1. Texas16 grants $141,000
  2. California6 grants $135,000
  3. Colorado1 grant $50,000
  4. Missouri1 grant $10,000

Officers, directors and trustees

4 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Kathryn AthertonDIRECTOR Hours 1Pay $31,000
  • Geary AthertonDIRECTOR Hours 1Pay $31,000
  • Catherine N CookeDIRECTOR Hours 1Pay $31,000
  • Peter AthertonDIRECTOR Hours 1Pay $31,000

The return

More foundations

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Same main cause (education), giving between a quarter and four times this foundation’s where possible, nearby first.

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  2. He Stumberg Sr Orphans Crippled Children & Handicapped Persons TrustSan Antonio, TX 1 grant Accepts applications $369,894 giving
  3. Richard Spencer Lewis MemorialSan Antonio, TX 5 grants Preselected only $400,000 giving
  4. Gresham Charitable Trust FD149San Antonio, TX 2 grants Preselected only $279,888 giving
  5. Tracy Guthrie Charitable Trust AB744San Antonio, TX 8 grants Accepts applications $439,000 giving