The Charles and Joanne Mcilwaine Foundation
Invitation OnlyTulsa, Oklahoma · EIN 20-7163272 · Private foundation
Grants paid (2025)$161K
Organizations funded15
Typical grant$10,000
Total assets$3.3M
Half of its grants to organizations were between $7,500 and $15,000.
From the return
How to apply
On its return for tax year 2025 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
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 Oklahoma.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Ronald Mcdonald House Charities of Wichita Inc | Wichita, KS | To help fund the operational objectives of the organization | $25,000 |
| Kansas Wildscape | Lawrence, KS | To help fund the operational objectives of the organization | $15,000 |
| South Central Kansas Smorgaschorus | Wichita, KS | To help fund the operational objectives of the organization | $15,000 |
| The Quivira Council Boy Scouts of America | Wichita, KS | To help fund the operational objectives of the organization | $15,000 |
| Exploration Place | Wichita, KS | To help fund the operational objectives of the organization | $10,000 |
| Great Plains Nature Center | Wichita, KS | To help fund the operational objectives of the organization | $10,000 |
| Kansas Humane Soceity | Wichita, KS | To help fund the operational objectives of the organization | $10,000 |
| The Wichita-Sedwick County Historical Museum | Wichita, KS | To help fund the operational objectives of the organization | $10,000 |
| Wichita Children's Home | Wichita, KS | To help fund the operational objectives of the organization | $10,000 |
| Wichita State Foundation | Wichita, KS | To help fund the operational objectives of the organization | $10,000 |
| Botanica Wichita | Wichita, KS | To help fund the operational objectives of the organization | $7,500 |
| Girl Scouts of Kansas Heartland | Wichita, KS | To help fund the operational objectives of the organization | $7,500 |
| The Nature Conservancy - Kansas Chapter | Topeka, KS | To help fund the operational objectives of the organization | $6,000 |
| Kansas Council for Economic Education | Wichita, KS | To help fund the operational objectives of the organization | $5,000 |
| Kansas Society for Children With Challenges | Wichita, KS | To help fund the operational objectives of the organization | $5,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $161,000 | 15 |
| 2024 | $150,000 | 15 |
| 2023 | $150,000 | 15 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 29, 2026 - IRS e-file batch, object ID 202601499349101100
- IRS Tax Exempt Organization Search for EIN 20-7163272
- 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.