Carlos and Marguerite Mason Foundation
Historical FunderSaint Louis, Missouri · EIN 58-1996431 · Private foundation
Half of its grants to organizations were between $150,000 and $500,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2024):
| Contact | CO WELLS FARGO PHILANTHROPIC SERVI |
|---|---|
| Address | 100 N MAIN ST D4000-062, WINSTONSALEM NC 27101 |
| Phone | 8882341999 |
| Form and materials | INFORMATION AT WWW.WELLSFARGO.COM/PRIVATEFOUNDATIONGRANTS/MA THE TRUSTEE DOES NOT REQUIRE A FORMAL APP, BUT REQUEST SUBMITTING A PROPOSAL DETAILING THE PROJECT OR PROGRAM. |
| Deadlines | APPLICATIONS MUST BE POSTMARKED OR HAND DELIVERED TOT THE TRUSTEE'S OFFICE BY JUNE 1. |
| Restrictions | FINANCIAL SUPPORT TO PERSONS OR ORGANIZATIONS IN GEORGIA ASSOCIATED WITH TRANSPLANTATION OF EYES, KIDNEYS, HEARTS, AND OTHER HUMAN ORGANS. |
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
100% of grants went outside Missouri.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Georgia Transplant Foundation Inc | Roswell, GA | Financial assistance | $2,050,000 |
| University of Georgia Research Foundatio | Athens, GA | General support | $650,000 |
| Childrens Healthcare of Atlanta Inc | Atlanta, GA | General operating | $500,000 |
| Atlanta Ronald Mcdonald House Charities | Atlanta, GA | Adopt a family program | $500,000 |
| Emory University | Atlanta, GA | General operating | $400,000 |
| Childrens Healthcare of Atlanta | Atlanta, GA | Various healthcare programs | $350,000 |
| The Georgia Health Sciences Foundation | New York, NY | General operating | $250,000 |
| Angel Flight Soars Inc | Chamblee, GA | General support | $150,000 |
| Augusta University Foundation Inc | Augusta, GA | General operating | $150,000 |
| Enduring Hearts Inc | Marietta, GA | General operating | $100,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $5,100,000 | 10 |
| 2023 | $4,600,000 | 7 |
Sources
- IRS Form 990-PF, tax year 2024, filed Oct 10, 2025 - IRS e-file batch, object ID 202522839349101002
- IRS Tax Exempt Organization Search for EIN 58-1996431
- 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.