Mason Charitable Trust
Historical FunderMilwaukee, Wisconsin · EIN 51-0171871 · Private foundation
Half of its grants to organizations were between $960 and $4,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2024):
| Contact | WILLIAM DOLAN |
|---|---|
| Address | C/O US BANK PO BOX 3168, PORTLAND OR 97208 |
| Phone | 5032755929 |
| Form and materials | CONTACT ABOVE |
| Deadlines | CONTACT ABOVE |
| Restrictions | DAVID & LOA MASON TRUST HAS 76% OF IT'S INCOME DEDICATED TO NAMED CHARITABLE ORGANIZATIONS. THE COMITTEE HAS THE PEROGATIVE TO SELECT NO MORE THAN THREE UN-NAMED ORGANIZATIONS TO RECEIVE NO MORE THAN 8%. |
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
93% of grants went outside Wisconsin.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Oregon Historical Society | Portland, OR | General operating | $9,600 |
| Hood River County School District | Hood River, OR | General operating | $5,200 |
| Reading Results | Portland, OR | General operating | $5,000 |
| Oregon Museum of Science & Industry | Portland, OR | General operating | $4,800 |
| Thrive Hood River | Hood River, OR | General operating | $4,000 |
| Oregon Independent College Fnd | Marylhurst, OR | General operating | $3,840 |
| Peo Oregon Chapter | Portland, OR | General operating | $2,500 |
| Community Vision | Portland, OR | General operating | $2,500 |
| Forest History Society | Durham, NC | General operating | $2,400 |
| United Way Worldwide | Alexandria, VA | General operating | $2,400 |
| Yale University Forestry School | New Haven, CT | Scholarship | $960 |
| Oregon Symphony Orchestra | Portland, OR | General operating | $960 |
| Rutgers University Foundation | New Brunswick, NJ | General operating | $960 |
| Trinity Episcopal Church | Oshkosh, WI | General operating | $960 |
| University of Nebraska Foundation | Lincoln, NE | General operating | $960 |
| Portland Art Museum | Portland, OR | General operating | $960 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $48,000 | 16 |
| 2023 | $43,895 | 14 |
Sources
- IRS Form 990-PF, tax year 2024, filed Oct 17, 2025 - IRS e-file batch, object ID 202532909349100018
- IRS Tax Exempt Organization Search for EIN 51-0171871
- Profile updated Nov 5, 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.