Muriel and Seymour Thickman Family Foundation
Historical funder research: IRS Form 990-PF filings from US private foundations, showing who funded what in past years. This is not a list of currently open grant calls, and we do not track open RFPs from private foundations. From public IRS Form 990-PF filings (latest on file for this funder: tax year 2025). Coverage: tax years 2019–2025. Freshness: the IRS releases these returns 1.5–2+ years after the tax year ends, so 2025 is still partial and a funder's newest grants may not appear yet. Last updated: November 14, 2026. Filings can contain errors, so confirm current priorities and deadlines with the funder before applying.
Year 2025 is still partial because many returns have not been filed or released yet. That is a freshness issue — coverage in our dataset is tax years 2019–2025.
Only 22.6% of this funder's organizational grants could be linked to an IRS cause code.
The foundation checked the box saying it contributes only to preselected organizations and doesn't accept unsolicited requests.
- Form & materials
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- Deadlines
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- Restrictions
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| Recipient | Location | Purpose (as filed) | Amount | Tax yr |
|---|---|---|---|---|
| Sheridan Memorial Hospital Foundation | Sheridan, WY | PROGRAM SUPPORT | $50,000 | 2025 |
| Piatigorsky Foundation | New York, NY | PROGRAM SUPPORT | $35,000 | 2025 |
| Wyo Theatre | Sheridan, WY | PROGRAM SUPPORT | $25,000 | 2025 |
| The Hub on Smith Street Fka Senior Citizens Council | Sheridan, WY | PROGRAM SUPPORT | $15,000 | 2025 |
| Center for Vital Community | Sheridan, WY | PROGRAM SUPPORT | $15,000 | 2025 |
| Sage Community Arts | Sheridan, WY | PROGRAM SUPPORT | $15,000 | 2025 |
| The Brinton Museum | Big Horn, WY | PROGRAM SUPPORT | $15,000 | 2025 |
| Habitat for Humanity of Eastern Bighorns | Sheridan, WY | PROGRAM SUPPORT | $10,000 | 2025 |
| University of Wyoming Foundation | Laramie, WY | PROGRAM SUPPORT | $10,000 | 2025 |
| Sheridan Civic Theatre Guild | Sheridan, WY | PROGRAM SUPPORT | $10,000 | 2025 |
| Wyoming Public Media | Laramie, WY | PROGRAM SUPPORT | $10,000 | 2025 |
| Wyoming PBS | Riverton, WY | PROGRAM SUPPORT | $10,000 | 2025 |
| Sheridan County YMCA | Sheridan, WY | PROGRAM SUPPORT | $10,000 | 2025 |
| Sheridan College Foundation | Sheridan, WY | SUPPORT CONCERT AND THEATRE | $10,000 | 2025 |
| Bighorn Development Center | Sheridan, WY | PROGRAM SUPPORT | $5,000 | 2025 |
| Advocacy & Resources Center | Sheridan, WY | PROGRAM SUPPORT | $5,000 | 2025 |
| Sheridan Community Land Trust | Sheridan, WY | PROGRAM SUPPORT | $5,000 | 2025 |
| Circle of Hope Health Care Services | Casper, WY | PROGRAM SUPPORT | $5,000 | 2025 |
| Sheridan County Library Foundation | Sheridan, WY | PROGRAM SUPPORT | $5,000 | 2025 |
| Antelope Butte Foundation | Sheridan, WY | PROGRAM SUPPORT | $3,000 | 2025 |
| Wyoming Community Foundation | Laramie, WY | PROGRAM SUPPORT | $2,000 | 2025 |
| Compass Center for Famlies | Sheridan, WY | PROGRAM SUPPORT | $1,000 | 2025 |
| Sheridan Arts Council | Sheridan, WY | PROGRAM SUPPORT | $800 | 2025 |
| Piatigorsky Foundation | New York, NY | PROGRAM SUPPORT | $30,000 | 2024 |
| Sheridan Memorial Hospital Foundation | Sheridan, WY | PROGRAM SUPPORT | $25,000 | 2024 |
Grants to individuals are counted but not named.
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