Jack & Marci Williams Endowment for

Foundation · Grantmaker Weston, MA EIN: 04-3500449

Jack & Marci Williams Endowment for is a private foundation focused on Human Services, based in Weston, MA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $1.4M in total assets. In 2024, it awarded 10 grants totaling $253K. Net investment income was $39K.

Key facts about Jack & Marci Williams Endowment for

EIN: 04-3500449
Latest 990 filing: Form 990-PF, 2024
Annual giving (2024): $252,500
Grants made (2024): 10
Average grant: $25,250
Median grant: $24,000
New grantees (estimate): 10% first-time grantees (1 of 10, 2024)
Total assets: $1,370,418
Primary geography: Massachusetts (84% of itemized 2024 grant dollars)

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

Who Jack & Marci Williams Endowment for funds

By grant dollars, the top recipient states for Jack & Marci Williams Endowment for's 10 itemized 2024 grants were Massachusetts (84%) and New Hampshire (16%). None of its 10 grants with a stated purpose were described as general or operating support.

Is Jack & Marci Williams Endowment for open to new grantees?

10%

first-time grantees, 2024

In 2024, 1 of 10 grantees (10%) were first-time recipients. First grants averaged $500; repeat grants $28K. How we count

Medians: $500 first-time, $40K repeat.

90% of 2024 grantees were also funded in 2023. Method
In 2024 it paid out 266% of its IRS minimum distribution (the 5% rule). Method

Estimate from itemized IRS Form 990-PF grant lists (2022–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Next steps with Jack & Marci Williams Endowment for

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Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$1.4M

-18.3% YoY

Annual Giving

$253K

-0.2% YoY

Grant Count

+0.0% YoY

Avg Grant Size

$25K

-0.2% YoY

Under IRS private-foundation payout rules, Jack & Marci Williams Endowment for reported a distributable amount of $95K for 2024 — the minimum it must pay out in qualifying distributions.

About Jack & Marci Williams Endowment for

Based on IRS filings

Focus Areas

Human Services

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

Massachusetts $212K (84%)

New Hampshire $40K (16%)

Illinois $500 (0%)

Share of all 10 itemized 2024 grant dollars.

States

Illinois Massachusetts New Hampshire Texas

Cities

BostonBraintreeBrocktonJamaica PlainMethuenNeedhamNewtonNorthfieldWorcesterChicagoSan Antonio

Financial History

Multi-year comparison from IRS filings

Revenue

Expenses

Qualifying Distributions

Net Investment Income

Metric	2024	2023	2022
Total Assets	$1,370,418	$1,676,960	$2,052,775
Revenue	$138,051	$71,747	$155,051
Expenses	$445,883	$454,943	$460,394
Qualifying Distributions	$252,500	$253,000	$252,000
Net Investment Income	$38,863	—	$36,781
Distributable Amount	$94,995	$106,837	$127,607

Data update history

When this profile's IRS filing data changed on Grantable

February 28, 2026 IRS filings on file for fiscal years 2020–2024

Giving Over Time

Total grant dollars and number of grants per year

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Grant Size Distribution

29 grants across all recorded years

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest recipients include St Ann's Home ($60,000), George H and Irene L Walker Home for Children Inc ($40,000), Italian Home for Children Inc ($40,000).

Recipient	Purpose	Amount
ST ANN'S HOME Methuen, MA	ASSISTANCE TO RESIDENTIAL HOME AND RELATED SERVICES FOR SPECIAL NEEDS CHILDREN AND FAMILIES.	$60,000
GEORGE H AND IRENE L WALKER HOME FOR CHILDREN INC Needham, MA	ASSISTANCE TO RESIDENTIAL HOME AND RELATED SERVICES FOR SPECIAL NEEDS CHILDREN AND FAMILIES.	$40,000
ITALIAN HOME FOR CHILDREN INC Jamaica Plain, MA	ASSISTANCE TO RESIDENTIAL HOME AND RELATED SERVICES FOR SPECIAL NEEDS CHILDREN AND FAMILIES.	$40,000
MASSACHUSETTS ADOPTION RESOURCE EXCHANGE INC Newton, MA	ASSIST SPECIAL NEEDS, ADOPTIVE, AND/OR OTHER CHILDREN WITH FINDING PERMANENT HOMES.	$40,000
SPAULDING YOUTH CENTER FOUNDATION INC Northfield, NH	ASSISTANCE TO RESIDENTIAL HOME AND RELATED SERVICES FOR SPECIAL NEEDS CHILDREN AND FAMILIES.	$40,000
BAY STATE COMMUNITY SERVICES INC (DIANNE DEVANNA CENTER) Braintree, MA	ASSISTANCE TO RESIDENTIAL HOME AND RELATED SERVICES FOR SPECIAL NEEDS CHILDREN AND FAMILIES.	$8,000
BOSTON CASA INC Boston, MA	ASSISTANCE TO RESIDENTIAL HOME AND RELATED SERVICES FOR SPECIAL NEEDS CHILDREN AND FAMILIES.	$8,000
BROCKTON AREA MULTI-SERVICES INC Brockton, MA	ASSISTANCE TO RESIDENTIAL HOME AND RELATED SERVICES FOR SPECIAL NEEDS CHILDREN AND FAMILIES.	$8,000
CASA PROJECT INC Worcester, MA	ASSISTANCE TO RESIDENTIAL HOME AND RELATED SERVICES FOR SPECIAL NEEDS CHILDREN AND FAMILIES.	$8,000
ALZHEIMER ASSOCIATION Chicago, IL	GRANTS TO OTHER NONPROFIT ORGANIZATIONS.	$500

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

Name	Title	Hours	Compensation
Jack B Williams	President/Director	30	$131,250
Marcelle P Williams	Treasurer/Director	5	—
Susan Petersen	Secretary/Director	—	—
Tom Warden	Vice President/Director	—	—

Subject Areas

Focus areas based on grantmaking activity

Human Services

Frequently Asked Questions

What is Jack & Marci Williams Endowment for?

Jack & Marci Williams Endowment for is a private foundation focused on Human Services, based in Weston, MA. It holds $1.4M in total assets as of 2024.

How large is Jack & Marci Williams Endowment for?

As of 2024, Jack & Marci Williams Endowment for holds $1.4M in total assets with $138K in annual revenue. It awarded 10 grants totaling $253K in 2024.

Where does Jack & Marci Williams Endowment for operate?

Jack & Marci Williams Endowment for has awarded grants in Illinois, Massachusetts, New Hampshire, Texas.

What size grants does Jack & Marci Williams Endowment for award?

In 2024, Jack & Marci Williams Endowment for awarded 10 grants totaling $253K — an average of about $25K per grant, based on its IRS Form 990 filings.

How much is Jack & Marci Williams Endowment for required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, Jack & Marci Williams Endowment for reported a distributable amount of $95K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is Jack & Marci Williams Endowment for's EIN?

Jack & Marci Williams Endowment for's EIN (Employer Identification Number) is 04-3500449. IRS Form 990 filing data is available on this page for 2020–2024.