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· Private foundation

Summerfield Baldwin Jr a Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$272k
Granted FY2025still arriving
10
Grants FY2025still arriving
4
States reached
$70k
Largest
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.

Health$2.1MArts & Culture$1.4MEnvironment$312kEducation$297kCommunity Improvement$18kYouth Development$10kHuman Services$1k
02FY2025 · 10 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k1 grant · $1k
  • $10k–50k6 grants · $80k
  • $50k–250k3 grants · $190k
$15,000
Median grant
4
States reached
$5.1M
Total assets
Largest grants
RecipientAmount
MARYLAND CENTER FOR HISTORY AND CULTURE$70,000
VIRGINIA MUSEUM OF HISTORY & CULTURE$60,000
CHESAPEAKE BAY FOUNDATION INC$60,000
CHESAPEAKE THERAPEUTIC RIDING INC$22,000
SCHOOL FUND$15,000
MARYLAND ASSOCIATION FOR ENVIRONMENTAL$13,380
LARC SCHOOL INC$10,000
OUR JOYFUL NOISE BALTIMORE$10,000
GIRLS ON THE RUN OF THE GREATER$10,000
THE SAMARITAN COMMUNITY INC$1,483
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Dollar for dollar, its grants (FY18–25) land where the poverty rate runs at 14%, against an area that typically sits at 8%. 88% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%SUMMERFIELD BALDWIN JR FDN B: $2.0M → 11%SCHOOL FUND: $15k → 8%LARC SCHOOL INC: $10k → 12%VIRGINIA HISTORICAL SOCIETY: $115k → 22%CHESAPEAKE BAY FOUNDATION: $60k → 6%CHESAPEAKE THERAPEUTIC RIDING INC: $22k → 7%Rubicon Productions Inc: $50k → 11%GILMAN SCHOOL: $30k → 19%VIRGINIA HISTORICAL SOCIETY: $70k → 22%CHESAPEAKE BAY FOUNDATION INC: $60k → 6%OUR JOYFUL NOISE BALTIMORE: $10k → 11%GILMAN SCHOOL: $25k → 19%VIRGINIA HISTORICAL SOCIETY: $70k → 22%CHESAPEAKE BAY FOUNDATION: $60k → 6%GILMAN SCHOOL: $25k → 19%VIRGINIA MUSEUM OF HISTORY & CULTURE: $60k → 22%CHESAPEAKE BAY FOUNDATION: $53k → 6%GILMAN SCHOOL: $25k → 19%VIRGINIA HISTORICAL SOCIETY: $54k → 22%CHESAPEAKE BAY FOUNDATION: $35k → 6%SAINT TIMOTHY'S SCHOOL: $25k → 19%VIRGINIA HISTORICAL SOCIETY: $50k → 22%CHESAPEAKE BAY FOUNDATION: $30k → 6%SAINT TIMOTHY'S SCHOOL: $20k → 19%VIRGINIA HISTORICAL SOCIETY: $23k → 22%ANNE ARUNDEL GENERAL HOSPITAL: $50k → 6%SAINT TIMOTHY'S SCHOOL: $20k → 19%VIRGINIA HISTORICAL SOCIETY: $15k → 22%ANNE ARUNDEL MEDICAL CENTER: $47k → 6%THE SAMARITAN COMMUNITY INC: $1k → 19%GIRLS ON THE RUN OF THE GREATER: $10k → 6%JOHNS HOPKINS UNIVERSITY: $10k → 19%MARYLAND ASSOCIATION FOR ENVIRONMENTAL: $13k → 6%MARYLAND HISTORICAL SOCIETY: $245k → 19%MARYLAND HISTORICAL SOCIETY: $125k → 19%MARYLAND HISTORICAL SOCIETY: $95k → 19%MARYLAND CENTER FOR HISTORY AND CULTURE: $70k → 19%MARYLAND HISTORICAL SOCIETY: $70k → 19%MARYLAND HISTORICAL SOCIETY: $69k → 19%MARYLAND HISTORICAL SOCIETY: $50k → 19%MARYLAND HISTORICAL SOCIETY: $30k → 19%ROCA INC: $9k → 19%ROCA INC: $9k → 19%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

44%of every dollar goes to organizations it has funded before.
$1.8M · 8 repeat orgs$2.3M to everyone else

Grantees it renews have grown median revenue +45% since the first grant, against +34% for those funded once.

8 repeat relationships: 3 still active in FY2025, 5 since wound down; 7 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

8
6

Total granted

$1.8M
$2.2M

Median revenue growth · since first grant

+45%
+34%

Still filing today

75%
67%

New vs renewed · share of each year

In FY2025, 70% of grant dollars renewed an existing relationship; $82k went to new ones.

50%100%’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’18’19’20’21’22’23’24’25
Arts & CultureEducationHealthEnvironmentInternationalCommunity ImprovementOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • MH
    MARYLAND HISTORICAL SOCIETY INC
    8× · 2018–2025 · $754k · revenue +102%
  • VH
    VIRGINIA HISTORICAL SOCIETY
    8× · 2018–2025 · $457k · revenue +49%
  • Colonial Williamsburg Foundation
    4× · 2018–2021 · $125k · revenue +8%

Funded once

  • SB
    SUMMERFIELD BALDWIN JR FDN B
    one grant, 2020 · $2.0M · revenue -91% · 97% of their budget
  • TC
    THE COLLEGE OF WILLIAM & MARY
    one grant, 2018 · $70k
  • AA
    ANNE ARUNDEL GENERAL HOSPITAL
    one grant, 2019 · $50k
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
University of Maryland Baltimore Foundation Inc

The organization's mission is to solicit and receive contributions and grants from the general public and to hold, invest, and administer these funds and pay expenditures for the benefit of the university of maryland in baltimore and to…

Education
2
Howard Hughes Medical Institute

The mission of the institute has remained constant since its founding in 1953. as its restated articles of incorporation state the primary purpose and objective of the howard hughes medical institute shall be the promotion of human…

Health
3
The Johns Hopkins Hospital

For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…

Health
4
Tudor Place Foundation Inc

Tudor place historic house & garden preserves the stories of six generations of descendants of martha washington and the enslaved and free people who lived and worked at this georgetown landmark for nearly two centuries. by examining their…

—
5
The Virginia and Alfred Harrell Foundation
—
6
Hampden-Sydney College

Since 1775, the mission of Hampden-Sydney College has been to form good men and good citizens in an atmosphere of sound learning.

Education
7
Baltimore Museum of Art

The baltimore museum of art connects art to baltimore and baltimore to the world, embodying a commitment to artistic excellence and social equity in every decision from art presentation, interpretation, and collecting, to the composition…

Arts & Culture
8
Hillsdale College

Hillsdale college is a private liberal arts college with approximately 1,500 students. founded in 1844, the college remains, in the words of its articles of association, "grateful to god for the inestimable blessings resulting from the…

Education
9
Seton Hall University

Seton hall university is a catholic institution of higher education

—
10
Johns Hopkins Health System Corporation

Johns hopkins health system corporation provides centralized management of a multi-hospital healthcare system. it is a key component of johns hopkins medicine, a collaboration with the johns hopkins university school of medicine.

Health
11
Massachusetts Historical Society

To promote understanding of the history of massachusetts and the nation by collecting and communicating materials and resources that foster historical knowledge.

Arts & Culture
12
Georgetown University

Established in 1789 in the spirit of the new republic, the university was founded on the principle that serious and sustained discourse among people of different faiths, cultures and beliefs promotes intellectual, ethical and spiritual…

Education
How this is measured
The grantee most central to the portfolio’s shape is Maryland Historical Society Inc; the most unlike its peers is Summerfield Baldwin Jr Fdn B. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

15 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 15 of the 21 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

1
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
15/15
Grantees still filing
9/15
Grew since first funded

Where the money sits, by cause and then by grantee

SUMMERFIELD BALDWIN JR FDN B: $2,017,093 · HealthSUMMERFIELD BALDWIN JR FDN B+1 more: $47,154 · HealthMARYLAND HISTORICAL SOCIETY INC: $753,850 · Arts & CultureMARYLAND HISTORICAL SOCIETY INCVIRGINIA HISTORICAL SOCIETY: $456,527 · Arts & CultureVIRGINIA HISTORICAL SOCIETYColonial Williamsburg Foundation: $125,000 · Arts & CultureColonial Williamsburg FoundationRUBICON PRODUCTIONS INC: $50,000 · Arts & Culture+2 more: $35,020 · Arts & CultureCHESAPEAKE BAY FOUNDATION INC: $298,310 · EnvironmentTHE COLLEGE OF WILLIAM & MARY: $70,000 · OtherSAINT TIMOTHY'S SCHOOL: $65,000 · OtherANNE ARUNDEL GENERAL HOSPITAL: $50,417 · OtherROCA INC: $17,622 · OtherMARYLAND ASSOCIATION FOR ENVIRONMENTAL: $13,380 · OtherGIRLS ON THE RUN OF THE GREATER: $10,000 · OtherGILMAN SCHOOL INCORPORATED: $105,000 · EducationCHESAPEAKE THERAPEUTIC RIDING INC: $22,000 · EducationJOHNS HOPKINS UNIVERSITY: $10,000 · EducationLARC SCHOOL INC D/B/A THE LARC NORCROSS SCHOOL: $10,000 · EducationSCHOOL FUND: $15,000 · InternationalThe Samaritan Community Inc: $1,483 · Community Improvement
Health$2,064,247Arts & Culture$1,420,397Environment$298,310Other$226,419Education$147,000International$15,000Community Improvement$1,483

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetSUMMERFIELD BALDWIN JR FDN B: $2,017,093 over 1y, 97% of budgetMARYLAND HISTORICAL SOCIETY INC: $753,850 over 8y, 4.6% of budgetVIRGINIA HISTORICAL SOCIETY: $456,527 over 8y, 1.3% of budgetCHESAPEAKE BAY FOUNDATION INC: $298,310 over 6y, 0.2% of budgetColonial Williamsburg Foundation: $125,000 over 4y, 0.1% of budgetGILMAN SCHOOL INCORPORATED: $105,000 over 4y, 0.1% of budgetRUBICON PRODUCTIONS INC: $50,000 over 1y, 6.2% of budgetLUMINIS HEALTH ANNE ARUNDEL MEDICAL CENTER INC: $47,154 over 1y, 0.0% of budgetSTRATFORD HALL: $25,020 over 5y, 0.3% of budgetJOHNS HOPKINS UNIVERSITY: $10,000 over 1y, 0.0% of budgetLARC SCHOOL INC D/B/A THE LARC NORCROSS SCHOOL: $10,000 over 1y, 0.1% of budgetOur Joyful Noise Baltimore Inc: $10,000 over 1y, 9.0% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Baltimore Community Foundation IncMD13.4× affinity4 shared granteesties to 3 of 3Hover any node to trace its alignments.Compare side by side →

Open a dossier: Baltimore Community Foundation Inc · The Bank of America Charitable Foundation Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Summerfield Baldwin Jr a Foundation funds: left to right is the share of its income from government, bottom to top the share from Summerfield Baldwin Jr a Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 40%6%25%56%100%funder's share of their income ↑0%6%13%19%25%share of the org’s income from government →median 2%
  • Johns Hopkins University: 12% of income from government
  • Maryland Historical Society Inc: 9% of income from government
  • Chesapeake Bay Foundation Inc: 2% of income from government
  • Larc School Inc D/B/a the Larc Norcross School: 1% of income from government
  • Luminis Health Anne Arundel Medical Center Inc: 0% of income from government
no gov moneyreceives it· size = income
4get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–25%
typical government reliance, FY20–25
How this is measured
Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 21 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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