Skip to content

· Private foundation

The Oliver Dewey Mayor Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$534k
Granted FY2025still arriving
39
Grants FY2025still arriving
2
States reached
$85k
Largest
01What it funds
0196% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Human Services$394kFood & Nutrition$287kPublic Safety & Disaster$261kEducation$231kArts & Culture$222kHealth$203kYouth Development$194kHousing & Shelter$142kOther$0
02FY2025 · 39 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k19 grants · $103k
  • $10k–50k19 grants · $346k
  • $50k–250k1 grant · $85k
$10,000
Median grant
2
States reached
$9.6M
Total assets
Largest grants
RecipientAmount
OSAGE-PLEASANT VIEW FIRE DEPT INC$85,000
CHILD & FAMILY GUIDANCE CENTER OF TEXOMA$40,000
ADAIR COMMUNITY FOR EXCELLENCE$32,600
TRI-COUNTY SENIOR NUTRITION$30,000
PRYOR MINISTRIES CENTER INC$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
TEXOMA BEHAVIORAL HEALTH$15,000
Individual grant recipient$15,000
HOUSE OF ELI$11,000
MASTERKEY MINISTRIES OF GRAYSON CO INC$11,000
PRYOR AREA RESOURCE ALLIANCE INC$10,000
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:

Its 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 its grants land in higher-need ZIPs.

area typical 11%PRYOR MINISTRIES CENTER: $45k → 18%PRYOR MINISTRIES CENTER: $35k → 18%PRYOR MINISTRIES CENTER: $30k → 18%PRYOR MINISTRIES CENTER: $27k → 18%TEXOMA FAMILY SHELTER: $10k → 11%GRAYSON COUNTY SHELTER: $10k → 11%TEXOMA FAMILY SHELTER: $5k → 11%MASTERKEY MINISTRIES OF GRAYSON CO INC: $11k → 11%Masterkey Ministries of Grayson County: $10k → 11%FOUR RIVERS OUTREACH INC: $10k → 11%Masterkey Ministries of Grayson County: $8k → 11%Masterkey Ministries of Grayson County: $8k → 11%Masterkey Ministries of Grayson County: $5k → 11%Masterkey Ministries of Grayson County: $5k → 11%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.

78%of every dollar goes to organizations it has funded before.
$1.8M · 48 repeat orgs$530k to everyone else

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

Re-uppedFunded once

Organizations

48
31

Total granted

$1.8M
$321k

Median revenue growth · since first grant

+28%
+28%

Still filing today

40%
26%

New vs renewed · share of each year

In FY2025, 61% of grant dollars renewed an existing relationship; $210k went to new ones.

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

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

’20’21’22’23’24’25
Human ServicesHealthYouth DevelopmentArts & CultureHousing & ShelterEducationOther
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

  • BA
    BOYS AND GIRLS CLUB OF GREEN COUNTR
    4× · 2020–2025 · $87k · revenue +34%
  • TB
    TEXOMA BEHAVORIAL HEALTH LEADERSHIP TEAM
    5× · 2020–2024 · $68k · revenue +30%
  • MM
    MASTERKEY MINISTRIES OF GRAYSON COUNTY
    6× · 2020–2025 · $46k · revenue +48%

Funded once

  • IG
    Individual grant recipient
    one grant, 2021 · $40k
  • IG
    Individual grant recipient
    one grant, 2023 · $25k
  • TO
    TOWN OF LOCUST GROVE
    one grant, 2022 · $25k
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
The Sherman Museum

Preservation and education of history and historical items of interest for the citizens and visitors of sherman, tx.

Arts & Culture
2
Grayson County Welfare Board Inc

To provide for children in the custody of the Texas Department of Regulatory Services.

Human Services
3
Garrison Volunteer Fire Department

To provide fire and medical emergency services for the city of garrison, tx and the surrounding districts.

Public Safety & Disaster
4
Wise County Domestic Violence Task Force

To assist sexual assault and domestic violence victims. To operate a safe shelter and provide counseling services.

Crime & Legal
5
Dawson County Senior Citizens Center Inc

Provide meals on wheels, congregate meals, and recreational facility for elderly and low income persons of dawson county texas.

—
6
Texas Foster Care & Adoption Serv

A state of texas licensed foster care and adoption agency that identifies and provides approved healing foster homes for children.

Human Services
7
Rains County Good Samaritans

Organization provides food, utility assistance and clothing to needy individuals in rains county, texas

Human Services
8
Denison Service League

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.

Community Improvement
9
Boys & Girls Club of Denison Texas

To enable all young people, especially those who need us most, to become productive citizens

Youth Development
10
Freestone County Historical and Museum Association Inc

To honor the history of Freestone County

Arts & Culture
11
Rockwall County Helping Hands Inc

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.

Human Services
12
Casa of Williamson County Texas

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.

Crime & Legal
How this is measured
The grantee most central to the portfolio’s shape is Child and Family Guidance Center of Texoma; 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.
04the grantee network

30 grantees tracked through their own filings, 2017–2026.

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 2026, 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.

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

1
Load-bearing (≥25% of a budget)
7
Early backer (in before they grew)
30/30
Grantees still filing
19/30
Grew since first funded

Where the money sits, by cause and then by grantee

OSAGE-PLEASANT VIEW FIRE DEPT INC: $135,000 · OtherOSAGE-PLEASANT VIEW FIRE DEPT INCTHE CHILD AND FAMILY GUIDANCE: $123,000 · OtherTHE CHILD AND FAMILY GUIDANCEIndividual grant recipient: $105,320 · OtherIndividual grant recipientGRAND CENTRAL STATION CENTER: $70,000 · OtherTRI-COUNTY SENIOR NUTRITION: $60,000 · OtherUNITED WAY OF GRAYSON COUNTY INC: $57,700 · Other+71 more: $1,135,187 · Other+71 morePRYOR MINISTRIES CENTER: $167,000 · Human ServicesPRYOR MINIS…MASTERKEY MINISTRIES OF GRAYSON COUNTY: $46,000 · Human ServicesMASTERKEY M…Texoma Family Shelter: $25,000 · Human ServicesTexoma Fami…FOUR RIVERS OUTREACH INC: $10,000 · Human ServicesTEXOMA BEHAVORIAL HEALTH LEADERSHIP TEAM: $67,500 · HealthCHILD AND FAMILY GUIDANCE CENTER OF TEXOMA: $40,000 · HealthMAKING DREAMS REAL INC: $22,163 · HealthOKLAHOMA PROJECT WOMAN INC: $15,000 · HealthBOYS AND GIRLS CLUB OF GREEN COUNTR: $86,825 · Youth DevelopmentBOY SCOUTS OF AMERICA: $20,000 · Youth DevelopmentMAYES COUNTY PREMIUM AUCTION CORPORATION: $15,000 · Youth DevelopmentHOUSE OF ELI INC: $45,000 · Housing & ShelterGEARY GIRLS RANCHNORTH dba GEARY FOSTER FOUNDATIONS: $37,000 · Housing & ShelterFriends of the Texas Historical Commission Inc: $40,000 · Arts & CultureRED RIVER RAILROAD MUSEUM: $11,941 · Arts & CultureGRAYSON GRAND CENTRAL STATION: $20,000 · Food & NutritionDENISON HELPING HANDS: $10,000 · Food & Nutrition
Other$1,686,207Human Services$248,000Health$144,663Youth Development$121,825Housing & Shelter$82,000Arts & Culture$51,941Food & Nutrition$30,000

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetPRYOR MINISTRIES CENTER: $167,000 over 5y, 31% of budgetBOYS AND GIRLS CLUB OF GREEN COUNTR: $86,825 over 4y, 17% of budgetTEXOMA BEHAVORIAL HEALTH LEADERSHIP TEAM: $67,500 over 5y, 16% of budgetUNITED WAY OF GRAYSON COUNTY INC: $57,700 over 6y, 2.0% of budgetMASTERKEY MINISTRIES OF GRAYSON COUNTY: $46,000 over 6y, 0.5% of budgetHOUSE OF ELI INC: $45,000 over 4y, 3.3% of budgetFriends of the Texas Historical Commission Inc: $40,000 over 4y, 1.5% of budgetGEARY GIRLS RANCHNORTH dba GEARY FOSTER FOUNDATIONS: $37,000 over 4y, 5.5% of budgetINDIAN NATIONS COUNCIL BOY SCOUTS OF AMERICA: $30,000 over 3y, 0.2% of budgetSHARE MINISTRIES INC: $26,000 over 2y, 12% of budgetTexoma Family Shelter: $25,000 over 3y, 4.2% of budgetSHERMAN COMMUNITY PLAYERS: $22,500 over 3y, 1.9% of budgetMAKING DREAMS REAL INC: $22,163 over 2y, 9.5% of budgetDENISON MAIN STREET INC: $20,000 over 4y, 3.3% of budgetGRAYSON GRAND CENTRAL STATION: $20,000 over 2y, 0.6% of budgetBOY SCOUTS OF AMERICA: $20,000 over 2y, 0.0% of budgetRogers State University Foundation: $20,000 over 1y, 0.3% of budgetCASA OF GRAYSON COUNTY INC: $20,000 over 2y, 3.4% of budgetMAYES COUNTY PREMIUM AUCTION CORPORATION: $15,000 over 1y, 5.6% of budgetOKLAHOMA PROJECT WOMAN INC: $15,000 over 5y, 0.4% of budgetRED RIVER RAILROAD MUSEUM: $11,941 over 2y, 20% of budgetBOYS AND GIRLS CLUB OF SHERMAN INC: $10,000 over 1y, 0.8% of budgetFOUR RIVERS OUTREACH INC: $10,000 over 1y, 1.8% of budgetTEXOMA AREA PARATRANSIT SYSTEM INC: $10,000 over 1y, 0.3% of budgetGRANT HALLIBURTON FOUNDATION INC: $10,000 over 1y, 0.6% of budgetDENISON HELPING HANDS: $10,000 over 1y, 9.4% of budgetSHERMAN SYMPHONY ORCHESTRA ASSOCIATION INC: $5,000 over 1y, 2.1% of budgetLOCUST COMMUNITY VOLUNTEER FIRE DEP: $5,000 over 1y, 1.6% of budgetHABITAT FOR HUMANITY INTERNATIONAL GRAYSON COUNTY: $3,970 over 1y, 0.4% 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.

  • 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 CHILD AND FAMILY GUIDANCE CENTER OF TEXOMA ↗
  • Who funds Friends of the Texas Historical Commission Inc ↗
  • 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 DENISON MAIN STREET INC ↗
  • Who funds GRAYSON GRAND CENTRAL STATION ↗

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.

W B Munson Foundation Xxxxx5008IL43.3× affinity18 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

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

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 The Oliver Dewey Mayor Foundation funds: left to right is the share of its income from government, bottom to top the share from The Oliver Dewey Mayor Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 40%3%10%23%40%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 20%
  • Rogers State University Foundation: 20% of income from government
no gov moneyreceives it· size = income
4get no government money at all
8report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
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.
05Through Plinth

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.

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 94 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

Play a game based on Oliver Dewey Mayor’s filings →

More from the funding graph