Mary Jane and Marvin Riddle Foundation
Accepts applications
Mary Jane and Marvin Riddle Foundation is a private foundation in Naples, Florida. In tax year 2025 it gave $70,349 in 14 grants; the typical grant was $800 and the largest $20,599. It accepts applications; its filing gives the instructions below.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$70,349
- Number of grants14
- Typical grant$800
- Largest grant$20,599
- Assets$1.4 million
- New grantees7%
Giving in 2025 was down from $118,923 the year before.
7% of its 2025 grantees had not received a grant from it the year before, so most of its money goes to organizations it already funds.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $69,893 | 15 | $1.3 million |
| 2024 | $118,923 | 15 | $1.3 million |
| 2025 | $70,349 | 14 | $1.4 million |
How to apply
| Contact | Mary Jane Riddle 100 Moorings Park Drive Unit F 101, Naples, FL 34105 |
|---|---|
| Phone or email | (908) 537-2155 |
| What to submit | Letter of request |
What Mary Jane and Marvin Riddle Foundation funds
Where it gives
Its grants went to recipients in 5 states, the most to Pennsylvania.
| State | Grants | Amount |
|---|---|---|
| Pennsylvania | 7 | $26,925 |
| Massachusetts | 1 | $20,599 |
| New York | 1 | $20,375 |
| Florida | 4 | $1,450 |
| District of Columbia | 1 | $1,000 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Deerfield Academy | To support continuing operations | $20,599 |
| Emma Willard School | To support continuing operations | $20,375 |
| Lafayette College | H. M. Riddle '51 fund for engineering education | $20,375 |
| College Hill Presbyterian Church | To support continuing operations | $2,500 |
| Northampton Community College | To support continuing operations | $2,000 |
| American Red Cross | To support continuing operations | $1,000 |
| Project of Easton Inc | To support continuing operations | $800 |
| United Way of the Greater Lehigh Valley | To support continuing operations | $800 |
| Moorings Park Foundation | To support continuing operations | $550 |
| Artis - Naples | To support continuing operations | $300 |
| Conservancy of Southwest Florida | To support continuing operations | $300 |
| The Historic Easton Cemetery | To support continuing operations | $300 |
| The Shelter for Abused Women and Children | To suppport continuing operations | $300 |
| Northampton County Historical Society & Geneealogical Society | To support continuing operations | $150 |
Officers and trustees
- Mary Jane Riddle
- Stephen A Riddle
- Sheila J Riddle
- Deborah R Bernier
Questions people ask
Does Mary Jane and Marvin Riddle Foundation accept grant applications?
Yes. Its latest IRS filing says it accepts applications.
How much does Mary Jane and Marvin Riddle Foundation give?
$70,349 in tax year 2025, across 14 grants, with a typical grant of $800.
Who runs Mary Jane and Marvin Riddle Foundation?
Its 2025 filing lists Mary Jane Riddle (President), Stephen A Riddle (Director), Sheila J Riddle (Director) and Deborah R Bernier (Director).
What does Mary Jane and Marvin Riddle Foundation fund?
Based on its grants, mainly education, human services and environment and conservation.