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Nonprofit · EIN 75-1864630

OLIVER DEWEY MAYOR FOUNDATION

Tax-exempt · TULSA, OK 74101

Financials

$4.1M$671K2022$504K$654K2023$595K$813K2024
Revenue Expenses · by fiscal year end
Financials of OLIVER DEWEY MAYOR FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990-PF$595,281$813,330-$218,049$9,550,220$0$9,550,220
June 30, 2024990-PF$503,614$653,819-$150,205$9,777,284$0$9,777,284
June 30, 2023990-PF$4,083,332$671,374$3,411,958$9,900,883$0$9,900,883
Financial details: 990-PF for the year ended June 30, 2025

Revenue

Dividends
$275,696
Net gain from sales of assets
$282,577
Other income
$37,008

Expenses

Grants and similar amounts paid
$534,259
Compensation of officers, directors and key employees
$137,321
Disbursements for charitable purposes
$619,241
Excise tax on investment income
$5,206

Balance sheet and other

Total assets, start of year
$9,777,284
Total assets, end of year
$9,550,220
Total liabilities, end of year
$0
Net assets, end of year
$9,550,220
Fair market value of assets
$18,594,565
Qualifying distributions
$619,241
Net investment income
$559,278

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990-PF for the year ended June 30, 2025, highest compensation first.

NameTitleHours / weekCompensation
BANK OF TEXAS NA
PO BOX 1088, SHERMAN, TX 75091
CORPORATE20$127,321
CURT STUTZMAN
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$2,000
MARSHA W DOWNUM
1477 SE 616 DR, LOCUST GROVE, OK 74352
GOVERNOR2$2,000
CHEYRL COHAGAN
P O BOX 1088, SHERMAN, TX 75091
GOVERNOR2$2,000
ROBERT BENJAMIN SHERRER
123 N HAYDEN STREET, CHOUTEAU, OK 74337
GOVERNOR2$2,000
HORACE GROFF
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$1,500
MARK RUSSELL
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$500
990-PF for the year ended June 30, 2024: 8 people
NameTitleHours / weekCompensation
BANK OF TEXAS NA
PO BOX 1088, SHERMAN, TX 75091
CORPORATE20$118,937
HORACE GROFF
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$2,000
CURT STUTZMAN
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$2,000
MARSHA W DOWNUM
1477 SE 616 DR, LOCUST GROVE, OK 74352
GOVERNOR2$2,000
MARGO SHERRER
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$1,500
CAROLYN DEXHEIMER
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$1,000
CHEYRL COHAGAN
P O BOX 1088, SHERMAN, TX 75091
GOVERNOR2$1,000
ROBERT BENJAMIN SHERRER
123 N HAYDEN STREET, CHOUTEAU, OK 74337
GOVERNOR2$500
990-PF for the year ended June 30, 2023: 7 people
NameTitleHours / weekCompensation
BANK OF TEXAS NA
PO BOX 1088, SHERMAN, TX 75091
CORPORATE20$124,174
HORACE GROFF
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$2,000
MARGO SHERRER
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$2,000
CAROLYN DEXHEIMER
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$2,000
CURT STUTZMAN
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$2,000
DENITA SHAMEL
PO BOX 1088, SHERMAN, TX 75091
GOVERNOR2$1,000
MARSHA W DOWNUM
1477 SE 616 DR, LOCUST GROVE, OK 74352
GOVERNOR2$1,000

Address and contacts

Address (IRS master file)
PO BOX 1620, TULSA, OK 74101-1620
In care of
% BANK OF OKLAHOMA TAX DEPT
Signed the 990-PF
BOKF NA TRUSTEE, VICE PRESIDENT
Phone
(918) 619-1527
Return prepared by
ERNST & YOUNG LLP

What it must file and when

IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990-PF on file
2023June 30, 2024November 15, 2024990-PF on file

IRS record

EIN
75-1864630
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Private non-operating foundation
Donations deductible (Pub 78)
Private foundation, 30% limit
Exempt since
1983
Accounting year ends
June
Files
Form 990-PF
Assets (IRS master file)
$9,550,220
Income (IRS master file)
$1,300,453

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFJune 2025$595,281$813,330$9,550,220XML
990-PFJune 2024$503,614$653,819$9,777,284XML
990-PFJune 2023$4,083,332$671,374$9,900,883XML
990-PFJune 2022–––IRS
990-PFJune 2021–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 75-1864630).

Questions about OLIVER DEWEY MAYOR FOUNDATION

What is the EIN of OLIVER DEWEY MAYOR FOUNDATION?
The employer identification number (EIN) of OLIVER DEWEY MAYOR FOUNDATION is 75-1864630.
Is OLIVER DEWEY MAYOR FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1983.
Are donations to OLIVER DEWEY MAYOR FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does OLIVER DEWEY MAYOR FOUNDATION file?
Form 990-PF. Private foundations file every year.
When is the next return of OLIVER DEWEY MAYOR FOUNDATION due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did OLIVER DEWEY MAYOR FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended June 2025.
Who are the officers and directors of OLIVER DEWEY MAYOR FOUNDATION?
The 990-PF for the year ended June 30, 2025 lists 7 people; 7 received compensation from the organization, the highest $127,321 (BANK OF TEXAS NA, CORPORATE).
How much revenue does OLIVER DEWEY MAYOR FOUNDATION have?
On its 990-PF for the year ended June 30, 2025 it reported revenue of $595,281, expenses of $813,330 and total assets of $9,550,220 at year end.

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