Donald and Martha Dewees Foundation
Historical FunderGreenville, Delaware · EIN 26-0873138 · Private foundation
Half of its grants to organizations were between $15,000 and $50,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | GRETCHEN KENNEDY |
|---|---|
| Address | PO BOX 3898, GREENVILLE DE 19807 |
| Phone | 3024288638 |
| Form and materials | FORMAL WRITTEN REQUEST OUTLINING PURPOSE OF AGENCY AND REASON TO BE CONSIDERED FOR A CONTRIBUTION. |
| Deadlines | SEPTEMBER 30 OF EACH YEAR TO BE CONSIDERED FOR THE YEAR. |
| Restrictions | NONE |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
25% of grants went outside Delaware.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Humane Animal Partners de | Wilmington, DE | Operations | $250,000 |
| Biggs Museum | Dover, DE | Operations | $250,000 |
| The Challenge Program | Wilmington, DE | Operations | $75,000 |
| De Historical Society | Wilmington, DE | Operations | $65,000 |
| Talon Reach Foundation | Three Forks, MT | Operations | $50,000 |
| First Comm Foundation | Wilmington, DE | Operations | $50,000 |
| YMCA of de | Wilmington, DE | Operations | $50,000 |
| Leukemia Lymphoma Soc | New York, NY | Annual fundraiser | $50,000 |
| Delaware Art Museum | Wilmington, DE | Operations | $40,000 |
| Camphill Village | Kimberton, PA | Operations | $25,000 |
| Samaritans Purse | Boone, NC | Operations | $25,000 |
| Plastic Free Delaware-Summer Sponsor | Wilmington, DE | Operations | $25,000 |
| Mans Legacy Foundation | Greenville, DE | Operations | $25,000 |
| Serafin Presents Inc | Wilmington, DE | Operations | $20,000 |
| Salesianum School | Wilmington, DE | Operations | $20,000 |
| Friends of Canby Grove Park | Wilmington, DE | Operations | $15,000 |
| The Kennett Pike Association | Wilmington, DE | Operations | $15,000 |
| Friends of John Dickinson Mansion | Dover, DE | Operations | $15,000 |
| Delaware Nature Society | Hockessin, DE | Operations | $15,000 |
| De Audobon | Newark, DE | Operations | $13,396 |
| Hagley Museum & Library-Crowninshield Garden | Wilmington, DE | Operations | $10,000 |
| De Wild Lands | Townsend, DE | Operations | $5,089 |
| Coalition Salute American Heros | Williamsburg, VA | Operations | $5,000 |
| Stop Soldier Suicide | Raleigh, NC | Operations | $2,500 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $1,115,985 | 24 |
| 2024 | $929,564 | 19 |
| 2023 | $100,000 | 6 |
Sources
- IRS Form 990-PF, tax year 2025, filed Apr 13, 2026 - IRS e-file batch, object ID 202611039349100801
- IRS Tax Exempt Organization Search for EIN 26-0873138
- Profile updated Nov 4, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.