The Mary K and Walter M Miller Family Foundation Inc

Private foundation · Grantmaker Darien, CT EIN: 06-1558950

THE MARY K AND WALTER M MILLER is a private foundation based in Darien, Connecticut. Its 2024 filing says the foundation was being terminated and that all assets were distributed to charitable organizations during 2024, with none distributed to individuals; it therefore appears to have wound down and stopped grantmaking.

The Mary K and Walter M Miller Family Foundation Inc at a glance

In short: The Mary K and Walter M Miller Family Foundation Inc gave $496K across 12 grants in 2024 (avg $41K), top state Vermont. 33% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.

Annual giving (2024)
$496,474
+2058.6% vs 2023
Grants made (2024)
12
+20.0% vs 2023
Average grant
$41,373
+1698.8% vs 2023
Median grant
$50,000
New grantees (estimate)
33% first-time grantees (4 of 12, 2024; small sample)
Primary geography
Vermont (34% of itemized 2024 grant dollars)
Latest 990 filing
Form 990-PF, 2024 View filing

Data from IRS Form 990-PF, 2024; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to The Mary K and Walter M Miller Family Foundation Inc

Accepts unsolicited proposals
No
How to Apply

The foundation’s filing says it does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. This policy is stated in its final 2024 filing and should not be treated as a current application opportunity.

Contact

Mailing address: 5 Marianne Road, Darien, CT 06820
Phone: (203) 655-8438

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who The Mary K and Walter M Miller Family Foundation Inc funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Manchester Music Festival: $115KManchester Music Festival$115KPenn State University: $100KPenn State University$100KSt Timothy's School: $53KSt Timothy's School$53KStratton Mountain School & Ski Foundation Inc: $52KStratton Mountain School & SkiFoundation Inc$52KColumbia University: $50KColumbia University$50KMount Carmel Foundation: $50KMount Carmel Foundation$50KNorthwestern University: $50KNorthwestern University$50KUCLA Foundation: $20KUCLA Foundation$20KBurr and Burton Academy: $2KBurr and Burton Academy$2KKenyon College: $2KKenyon College$2K

The largest 2024 recipient was Manchester Music Festival ($115K). Together the top 10 received $494K.

Grant Size Distribution

55 grants across all recorded years

48<$50K5$50–100K2$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 48 grants of 55 (87%).

Geographic Focus

Where this funder awards grants

The 2024 grant dollars were distributed among recipients in several states. The largest reported state shares were Vermont (34%), Pennsylvania (20%), Maryland (11%), Ohio (11%), and Illinois (10%).

Grant Distribution by State

11states

Share of 2024 grant dollars across all 12 itemized grants.

Cities

ManchesterNew YorkStevensonChicagoLos AngelesGranvilleColumbusSouth LondonderryAvonUniversity ParkCantonEvanstonGambierMemphisRevereSimsburySpringfieldStratton MountainTampaWestport

Is The Mary K and Walter M Miller Family Foundation Inc open to new grantees?

33%

first-time grantees, 2024

In 2024, 4 of 12 grantees (33%) were first-time recipients. With only 12 grantees, that is a small sample: one grantee more or less moves the share by about 8 points. First grants averaged $31K; repeat grants $47K. How we count

Medians: $35K first-time, $51K repeat.

  • 50% of 2024 grantees were also funded in 2023. Method
  • Giving grew 1360% from 2021 to 2024. Method
  • In 2024 it paid out well above its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$200K$400K$600K7 grants2019 16 grants2020 7 grants2021 10 grants2022 10 grants2023 12 grants2024

From 2019 to 2024, annual grant giving ranged from $23K (2023) to $496K (2024). In 2024 it made 12 grants totaling $496K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Manchester Music Festival Manchester, VTGeneral Fund Contribution$114,974
Penn State University University Park, PAGeneral Fund Contribution$100,000
St Timothy's School Stevenson, MDGeneral Fund Contribution$53,000
Stratton Mountain School & Ski Foundation Inc South Londonderry, VTGeneral Fund Contribution$52,000
Columbia University New York, NYGeneral Fund Contribution$50,000
Mount Carmel Foundation Columbus, OHGeneral Fund Contribution$50,000
Northwestern University Evanston, ILGeneral Fund Contribution$50,000
UCLA Foundation Los Angeles, CAGeneral Fund Contribution$20,000
Burr and Burton Academy Manchester, VTGeneral Fund Contribution$2,000
Kenyon College Gambier, OHGeneral Fund Contribution$2,000
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Financial History

Multi-year comparison from IRS filings

Assets were not provided for 2024.

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2024—$139,108$513,744$496,47412$503,670$129,033$10,451
2023$376,139$14,734$31,643$23,00010$25,077$5,627$21,027
2022$394,256$3,633$42,084$32,60010$34,200$1,592$23,897
2021$645,364$52,365$43,551$34,0007$34,000$43,199$30,073
2020$600,250$31,994$36,954$29,90416—$24,795$24,799
2019$510,916$22,633$32,578$25,8507—$15,997$23,386

Under IRS private-foundation payout rules, The Mary K and Walter M Miller Family Foundation Inc reported a distributable amount of $10K for 2024 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement for the foundation is provided. The 2024 grants included support for educational institutions and a music festival. The Manchester Music Festival describes its mission as engaging and inspiring audiences for classical music and teaching young performers chamber music. Northwestern University describes its mission as excellent teaching, innovative research, and the personal and intellectual growth of students in a diverse academic community. The UCLA Foundation describes itself as UCLA’s giving, receiving, and investing arm, enabling private donors to support the university’s academic and research work.

Grantmaking

In 2024, the foundation reported 12 grants totaling $496,474. Grant amounts ranged from $500 to $114,974, with a median of $50,000. Notable grants included $114,974 to Manchester Music Festival, $100,000 to Penn State University, $53,000 to St. Timothy’s School, $52,000 to Stratton Mountain School & Ski Foundation, and $50,000 each to Columbia University, Mount Carmel Foundation, and Northwestern University.

The filing also lists grants of $20,000 to UCLA Foundation; $2,000 each to Burr and Burton Academy, Kenyon College, and the University of Chicago Booth School of Business; and $500 to Denison University. All were designated as general fund contributions.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2024 filing lists Mary K Miller as president and director; Walter M Miller as vice president, secretary, and director; and Christie Miller Goldman as director.

The Mary K and Walter M Miller Family Foundation Inc is led by Mary K. Miller, President & Director on every filing since 2019; none of the 3 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Mary K. Miller

    President & Director

    On filings since 2019

    1 hr/week

    No compensation reported

  • Christie Miller Goldman

    Director

    On filings since 2019

    No compensation reported

  • Walter M. Miller

    Vice President, Secretary & Director

    On filings since 2019

    1 hr/week

    No compensation reported

Data from IRS Form 990 filings, 2019–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about The Mary K and Walter M Miller Family Foundation Inc

How much does The Mary K and Walter M Miller Family Foundation Inc give each year?

The Mary K and Walter M Miller Family Foundation Inc gave $496K across 12 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $23K across 10 grants.

What is The Mary K and Walter M Miller Family Foundation Inc's typical grant size?

The Mary K and Walter M Miller Family Foundation Inc's median grant in 2024 was $50,000, and its average grant was $41,373, across 12 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from The Mary K and Walter M Miller Family Foundation Inc that year got $31K on average.

Where does The Mary K and Walter M Miller Family Foundation Inc give grants?

The Mary K and Walter M Miller Family Foundation Inc's top state is Vermont, with 34% of the grant dollars itemized on its 2024 IRS Form 990-PF. The next largest states were Pennsylvania (20%) and Maryland (11%). The most frequent recipient cities were Manchester, VT (2 grants).

Does The Mary K and Walter M Miller Family Foundation Inc give general operating support?

Yes: 100% of The Mary K and Walter M Miller Family Foundation Inc's 2024 grants with a stated purpose (12 of 12) were for general or operating support, per its 2024 IRS Form 990-PF.

Who are The Mary K and Walter M Miller Family Foundation Inc's largest grantees?

The Mary K and Walter M Miller Family Foundation Inc's largest 2024 grantees include Manchester Music Festival ($114,974), Penn State University ($100,000) and St Timothy's School ($53,000), according to its 2024 IRS Form 990-PF. Together they received 54% of its itemized 2024 grant dollars.

What does The Mary K and Walter M Miller Family Foundation Inc fund?

No mission statement for the foundation is provided. The 2024 grants included support for educational institutions and a music festival. The Manchester Music Festival describes its mission as engaging and inspiring audiences for classical music and teaching young performers chamber music. See mission & focus areas ↑

How do I apply for a grant from The Mary K and Walter M Miller Family Foundation Inc?

The foundation’s filing says it does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

How much is The Mary K and Walter M Miller Family Foundation Inc required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, The Mary K and Walter M Miller Family Foundation Inc reported a distributable amount of $10K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is The Mary K and Walter M Miller Family Foundation Inc's EIN?

The Mary K and Walter M Miller Family Foundation Inc's EIN (Employer Identification Number) is 06-1558950. IRS Form 990 filing data is available on this page for 2019–2024.

Does The Mary K and Walter M Miller Family Foundation Inc accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated September 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

Data update history

(2)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2019 (received by the IRS June 23, 2020)
  2. IRS filings on file for fiscal years 2020–2024

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Cite this profile

Grantable. (2026). The Mary K and Walter M Miller Family Foundation Inc funder profile. GrantGraph. Retrieved October 6, 2026, from https://grantable.co/funders/the-mary-k-and-walter-m-miller-family-foundation-inc-morg_358e99c4270c40808cb1beecc7aa4e55

BibTeX
@misc{grantable_061558950_2026,
  author       = {{Grantable}},
  title        = {{The Mary K and Walter M Miller Family Foundation Inc funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-mary-k-and-walter-m-miller-family-foundation-inc-morg_358e99c4270c40808cb1beecc7aa4e55},
  note         = {Accessed 2026-10-06. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from The Mary K and Walter M Miller Family Foundation Inc's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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