· Private foundation
The Oliver Dewey Mayor Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2020–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k19 grants · $103k
- $10k–50k19 grants · $346k
- $50k–250k1 grant · $85k
| Recipient | Amount |
|---|---|
| OSAGE-PLEASANT VIEW FIRE DEPT INC | $85,000 |
| CHILD & FAMILY GUIDANCE CENTER OF TEXOMA | $40,000 |
| ADAIR COMMUNITY FOR EXCELLENCE | $32,600 |
| PRYOR MINISTRIES CENTER INC | $30,000 |
| TRI-COUNTY SENIOR NUTRITION | $30,000 |
| ADAIR PUBLIC SCHOOLS | $25,000 |
| BELLS ON BROADWAY | $20,000 |
| CITY OF BELLS FIRE DEPARTMENT | $20,000 |
| MAYES COUNTY MEDICAL CENTER AUXILIARY | $18,746 |
| CIVIL AIR PATROL TX-262 | $17,591 |
| Individual grant recipient | $15,000 |
| TEXOMA BEHAVIORAL HEALTH | $15,000 |
| HOUSE OF ELI | $11,000 |
| MASTERKEY MINISTRIES OF GRAYSON CO INC | $11,000 |
| GRAYSON GRAND CENTRAL STATION CENTER | $10,000 |
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 (FY20–25, $218k) land where the poverty rate runs at 15%, against an area that typically sits at 11%. 63% 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.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
48 repeat relationships — 24 still active in FY2025, 24 since wound down; 15 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 61% of grant dollars renewed an existing relationship; $210k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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
- BABOYS AND GIRLS CLUB OF GREEN COUNTR4× · 2020–2025 · $87k · revenue +42%
- TBTEXOMA BEHAVORIAL HEALTH LEADERSHIP TEAM5× · 2020–2024 · $68k · revenue +30%
- MMMASTERKEY MINISTRIES OF GRAYSON COUNTY6× · 2020–2025 · $46k · revenue +48%
Funded once
- IGIndividual grant recipientone grant, 2021 · $40k
- IGIndividual grant recipientone grant, 2023 · $25k
- TOTOWN OF LOCUST GROVEone grant, 2022 · $25k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
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.
Preservation and education of history and historical items of interest for the citizens and visitors of sherman, tx.
To provide for children in the custody of the Texas Department of Regulatory Services.
To provide fire and medical emergency services for the city of garrison, tx and the surrounding districts.
To assist sexual assault and domestic violence victims. To operate a safe shelter and provide counseling services.
Provide meals on wheels, congregate meals, and recreational facility for elderly and low income persons of dawson county texas.
A state of texas licensed foster care and adoption agency that identifies and provides approved healing foster homes for children.
Organization provides food, utility assistance and clothing to needy individuals in rains county, texas
The denison service league is an organization of women whose mission is to advance women's leadership for meaningful community impact through volunteer action, collaboration and training.
To enable all young people, especially those who need us most, to become productive citizens
To honor the history of Freestone County
To alleviate financial crisis and provide a medical home to the underserved. Strive to ensure that no one in Rockwall County goes to bed hungry, or without a roof overhead, or is deprived of needed medical care.
CASA of Williamson County, TX exists to empower community volunteers to advocate for children who have experienced abuse or neglect to find loving, safe, and permanent homes.
For reference, the grantee most central to the portfolio’s shape is Child and Family Guidance Center of Texoma and the most unlike its peers is Locust Community Volunteer Fire Dep. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 20 years old; the field is 13. You back the established end — and your money leans older still.
The field is 27% startups (under 5 years old) — 9% of your grantees by number, and just 5% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
30 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. 30 of the 94 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
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 PRYOR MINISTRIES CENTER ↗
- Who funds BOYS AND GIRLS CLUB OF GREEN COUNTR ↗
- Who funds TEXOMA BEHAVORIAL HEALTH LEADERSHIP TEAM ↗
- Who funds UNITED WAY OF GRAYSON COUNTY INC ↗
- Who funds MASTERKEY MINISTRIES OF GRAYSON COUNTY ↗
- Who funds HOUSE OF ELI INC ↗
- Who funds Friends of the Texas Historical Commission Inc ↗
- Who funds CHILD AND FAMILY GUIDANCE CENTER OF TEXOMA ↗
- Who funds GEARY GIRLS RANCHNORTH dba GEARY FOSTER FOUNDATIONS ↗
- Who funds INDIAN NATIONS COUNCIL BOY SCOUTS OF AMERICA ↗
- Who funds SHARE MINISTRIES INC ↗
- Who funds Texoma Family Shelter ↗
- Who funds SHERMAN COMMUNITY PLAYERS ↗
- Who funds MAKING DREAMS REAL INC ↗
- Who funds GRAYSON GRAND CENTRAL STATION ↗
- Who funds BOY SCOUTS OF AMERICA ↗
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: W B Munson Foundation Xxxxx5008 · Clara B & W Aubrey Smith Charitable · Elias & Hanna Regensburger Foundation · Thelma Braun & Bocklett Family Foundation · Texoma Community Foundation · Dorset Foundation Inc Attn Marty Sanderson · United Way of Grayson County Inc · Sherman Service League · Texas Instruments Foundation · Texoma Medical Center Volunteers · Captain Ht Hastings Charitable Trust Wealth Management Tax Services · Tr Uw Minnie M Jones
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 The Oliver Dewey Mayor 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 or a single department — and drag the year to watch it move.
- Rogers State University Foundation — 20% 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.
Warm introductions · Powered by PlinthPlus
How do I get to The Oliver Dewey Mayor Foundation?
Find your warmest path to The Oliver Dewey Mayor 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.