William B Dietrich Foundation
Historical FunderPhiladelphia, Pennsylvania · EIN 90-0628306 · Private foundation
Half of its grants to organizations were between $54,700 and $340,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2024):
| Contact | FRANK G COOPER PRESIDENT |
|---|---|
| Address | PO BOX 58177, PHILADELPHIA PA 191028177 |
| Phone | 2159791000 |
| Form and materials | IN WRITING, OUTLINING THE NATURE OF THE ORGANIZATION, INTENDED USE OF FUNDS, ACCOMPANIED BY A COPY OF IRS LETTER OF DETERMINATION OF CHARITABLE STATUS INDICATING THE RECIPIENT IS NOT A PRIVATE FOUNDATION. |
| Deadlines | N/A |
| Restrictions | N/A |
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
0% of grants went outside Pennsylvania.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Friends of Laurel Hill & West Laurel Hill Cemeteries | Philadelphia, PA | Restoration of gatehouse | $1,160,000 |
| The Franklin Institute | Philadelphia, PA | Hamilton collections gallery | $500,000 |
| Morris Arboretum of the University of Pennsylvania | Philadelphia, PA | Renovation & repair of the step fountain | $340,000 |
| Philadelphia Society for the Preservation of Landmarks | Philadelphia, PA | Grumblethorpe historic tenant house restoration projecti | $330,000 |
| Williamson College of the Trades | Media, PA | Doors & windows for exterior restoration of derrickson cottage | $270,000 |
| Township of Lower Merion | Ardmore, PA | General purposes | $255,000 |
| US Squash Racquets Association Inc | Philadelphia, PA | Design, construction & development of a new reception area at the armory | $240,000 |
| Saint Mark's Church | Philadelphia, PA | Masonry work & exterior lighting of the lady chapel | $54,700 |
| New Horizons Senior Center | Narberth, PA | General purposes | $10,000 |
| Surrey Services for Seniors | Berwyn, PA | General operations | $10,000 |
Grants approved for future payment
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Glen Foerd Conservation Corporation | Philadelphia, PA | Restoration of mansion exterior | $1,700,000 |
| Your Agency Incorporated | Philadelphia, PA | Restoration of exterior masonry, windows & doors, and facade lighting | $365,400 |
| Morris Arboretum of the University of Pennsylvania | Philadelphia, PA | Renovation & repair of step fountain (2nd installment) | $340,000 |
| US Squash Racquets Association Inc | Philadelphia, PA | Design, construction & development of a new receiption area at the armory (2nd installment) | $240,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $3,169,700 | 14 |
| 2023 | $3,196,481 | 9 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 12, 2025 - IRS e-file batch, object ID 202513169349102921
- IRS Tax Exempt Organization Search for EIN 90-0628306
- Profile updated Nov 6, 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.