· Private foundation
Katherine Wells Macmillan Foundation
Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
Read this first · the figures below need context
61% of Katherine Wells Macmillan Foundation’s FY2024 grant dollars went to Community Foundation Of The Florida Keys, not to grantees.
Its money now reaches organizations through that sponsor, which does not report who recommended each grant. FY2024 names 3 organizations directly, so a portfolio cannot be read from it.
Organizations named directly on the return
Amber years are those where most dollars went to a sponsor.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| COMMUNITY FOUNDATION OF THE FLORIDA KEYS | $1,487,500 |
| UNITED WAY OF COLLIER AND THE KEYS | $1,487,500 |
| NEW HAMPSHIRE CHARITABLE FOUNDATION | $1,000,000 |
| COMMUNITIES FOUNDATION OF OKLAHOMA | $1,000,000 |
| GRACE JONES COMMUNITY CENTER | $500,000 |
| FLORIDA KEYS CHILDREN'S SHELTER | $250,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY17–24, $1.2M) land where the poverty rate runs at 13%, against an area that typically sits at 12%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
As part of the baptist health network, the mission of homestead hospital inc. is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist health is a…
Working in partnership with state business leaders to secure florida's future.
As part of the baptist health network, the mission of west kendall baptist hospital, inc. is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist…
The mission of baptist health is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist health is a faith-based organization guided by the spirit of…
As part of the baptist health network, the mission of baptist hospital of miami is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist health is a…
As part of the baptist health network, the mission of doctors hospital, inc. is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist health is a…
As part of the baptist health network, the mission of south miami hospital is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist health is a…
As part of the baptist health network, the mission of fishermen's health, inc. is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist health is a…
As part of the baptist health network, the mission of mariner's hospital is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist health is a…
As part of the baptist health network, the mission of baptist outpatient services is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist health is…
As part of the baptist health network, the mission of bethesda hospital is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist health is a…
As part of the baptist health network, the mission of baptist health medical group inc is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist…
For reference, the grantee most central to the portfolio’s shape is Community Foundation of the Florida Keys and the most unlike its peers is Grace Jones Community Center Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
8 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds COMMUNITIES FOUNDATION OF OKLAHOMA ↗
- Who funds New Hampshire Charitable Foundation ↗
- Who funds Baptist Health South Florida Foundation Inc ↗
- Who funds COMMUNITY FOUNDATION OF THE FLORIDA KEYS ↗
- Who funds UNITED WAY OF COLLIER AND THE KEYS INC ↗
- Who funds GRACE JONES COMMUNITY CENTER INC ↗
- Who funds FLORIDA KEYS CHILDRENS SHELTER INC ↗
- Who funds DOMESTIC ABUSE SHELTER INC ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Ocean Reef Community Foundation Inc · Amazonsmile Foundation
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Katherine Wells Macmillan Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.
- Domestic Abuse Shelter Inc — 23% of income from government
- Florida Keys Childrens Shelter Inc — 19% of income from government
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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.
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How do I get to Katherine Wells Macmillan Foundation?
Find your warmest path to Katherine Wells Macmillan Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.