Mary Jane & Marvin Riddle Foundation Charitable Tr
Historical FunderNaples, Florida · EIN 23-2693114 · Private foundation
Half of its grants to organizations were between $300 and $2,500.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | MARY JANE RIDDLE |
|---|---|
| Address | 100 MOORINGS PARK DRIVE UNIT F 101, NAPLES FL 34105 |
| Phone | 9085372155 |
| Form and materials | LETTER OF REQUEST |
| Deadlines | NONE |
| 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
71% of grants went outside Florida.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Deerfield Academy | Deerfield, MA | To support continuing operations | $20,599 |
| Emma Willard School | Troy, NY | To support continuing operations | $20,375 |
| Lafayette College | Easton, PA | H. M. riddle '51 fund for engineering education | $20,375 |
| College Hill Presbyterian Church | Easton, PA | To support continuing operations | $2,500 |
| Northampton Community College | Bethlehem, PA | To support continuing operations | $2,000 |
| American Red Cross | Washington, DC | To support continuing operations | $1,000 |
| Project of Easton Inc | Easton, PA | To support continuing operations | $800 |
| United Way of the Greater Lehigh Valley | Allentown, PA | To support continuing operations | $800 |
| Moorings Park Foundation | Naples, FL | To support continuing operations | $550 |
| Artis - Naples | Naples, FL | To support continuing operations | $300 |
| Conservancy of Southwest Florida | Naples, FL | To support continuing operations | $300 |
| The Historic Easton Cemetery | Easton, PA | To support continuing operations | $300 |
| The Shelter for Abused Women and Children | Naples, FL | To suppport continuing operations | $300 |
| Northampton County Historical Society & Geneealogical Society | Easton, PA | To support continuing operations | $150 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $70,349 | 14 |
| 2024 | $118,923 | 15 |
| 2023 | $69,893 | 15 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 6, 2026 - IRS e-file batch, object ID 202601269349101800
- IRS Tax Exempt Organization Search for EIN 23-2693114
- 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.