William S & Lora Jean Kilroy Foundation
The William S & Lora Jean Kilroy Foundation is a private foundation based in Katy, Texas. Its 2024 grants supported organizations in Houston, Texas, and Atlanta, Georgia, including a school, museums, and other charitable organizations.
William S & Lora Jean Kilroy Foundation at a glance
In short: William S & Lora Jean Kilroy Foundation gave $483K across 13 grants in 2024 (avg $37K), mostly in Texas. 30% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $482,700
- -47.2% vs 2023
- Grants made (2024)
- 13
- -55.2% vs 2023
- Average grant
- $37,131
- +17.8% vs 2023
- Median grant
- $5,000
- Total assets
- $11,655,344
- +22.8% vs 2023
- New grantees (estimate)
- 30% first-time grantees (3 of 10, 2024; small sample)
- Primary geography
- Texas (100% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to William S & Lora Jean Kilroy Foundation
- Contact
Application contact: William S Kilroy Jr
Mailing address: 27126 Horizon Bay Ln Suite 100, Katy, TX 77494
Phone: (713) 478-6606
Email: billk@kilroyfoundation.us
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who William S & Lora Jean Kilroy Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was The Joy School ($273K across 2 grants). Together the top 10 received $483K.
Grant Size Distribution
155 grants across all recorded years
The most common grant size was under $50K: 138 grants of 155 (89%).
Geographic Focus
Where this funder awards grants
The listed 2024 grants went to organizations in Texas and Georgia, including recipients in Houston, Texas, and Atlanta, Georgia.
Grant Distribution by State
Share of 2024 grant dollars across all 13 itemized grants.
States
Cities
Is William S & Lora Jean Kilroy Foundation open to new grantees?
30%
first-time grantees, 2024
In 2024, 3 of 10 grantees (30%) were first-time recipients. With only 10 grantees, that is a small sample: one grantee more or less moves the share by about 10 points. First grants averaged $2K; repeat grants $68K. How we count
Medians: $1K first-time, $5K repeat.
- 60% of 2024 grantees were also funded in 2023. Method
- Giving fell 41% from 2021 to 2024. Method
- In 2024 it paid out 47% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $483K (2024) to $945K (2022). In 2024 it made 13 grants totaling $483K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| The Joy School Houston, TX | Building Campaign | $270,000 |
| Houston Museum of Natural Science Houston, TX | Charitable Purposes | $75,000 |
| Museum of Fine Arts Houston Houston, TX | Bayou Bend Collection and Gardens | $75,000 |
| Museum of Fine Arts Houston Houston, TX | Bayou Bend Annual Fund | $35,000 |
| Museum of Fine Arts Houston Houston, TX | Icons - 2024 Grand Gala Ball | $10,000 |
| Houston Botanic Garden Houston, TX | Charitable Purpose | $5,000 |
| The Salvation Army Houston, TX | Charitable Purposes | $5,000 |
| Houston Zoo Houston, TX | Charitable Purposes | $2,500 |
| The Joy School Houston, TX | Charitable Purposes | $2,500 |
| Mission of Yahweh Houston, TX | Charitable Purpose | $1,000 |
Ready to take the next step with William S & Lora Jean Kilroy Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $11,655,344 | $2,810,666 | $643,718 | $482,700 | 13 | $489,260 | $2,686,531 | $1,046,302 |
| 2023 | $9,488,396 | $1,514,901 | $1,135,609 | $914,150 | 29 | $999,619 | $1,412,331 | $908,676 |
| 2022 | $9,109,104 | $577,131 | $1,048,919 | $945,200 | 35 | $947,317 | $475,529 | $917,319 |
| 2021 | $9,580,892 | $1,974,908 | $945,344 | $816,500 | 34 | $839,641 | $1,872,643 | $992,700 |
| 2020 | $8,551,328 | $525,592 | $977,445 | $817,023 | 44 | — | $446,139 | $815,450 |
Under IRS private-foundation payout rules, William S & Lora Jean Kilroy Foundation reported a distributable amount of $1.0M for 2024 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2024 grantees included organizations working in education, museums and the arts, environmental conservation, wildlife, health, and social services. For example, the Houston Museum of Natural Science says its mission is to advance knowledge of natural science and maintain a first-class museum. Houston Botanic Garden describes its mission as enriching life through discovery, education, and conservation of plants and the natural environment. River Oaks Chamber Orchestra says it aims to shape the future of classical music by modernizing and personalizing the concert experience.
Grantmaking
In 2024, the foundation made 13 grants totaling $482,700. Grant amounts ranged from $200 to $270,000, with a median grant of $5,000. The largest award was $270,000 to The Joy School for a building campaign. Other notable grants included $75,000 to the Houston Museum of Natural Science for charitable purposes and $75,000 to the Museum of Fine Arts Houston for its Bayou Bend Collection and Gardens.
The foundation also awarded the Museum of Fine Arts Houston $35,000 for the Bayou Bend Annual Fund and $10,000 for the Icons 2024 Grand Gala Ball. Other 2024 grants included $5,000 each to Houston Botanic Garden and The Salvation Army, and $2,500 to Houston Zoo. Houston Zoo describes its mission as connecting communities with animals and inspiring action to save wildlife.
The filing states that the foundation does not restrict giving to preselected organizations. Applicants should contact William S Kilroy Jr and submit a letter containing information they deem relevant for consideration. The filing lists no restrictions on awards.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Lora Jean Kilroy, Mari Angela Kilroy, and William S Kilroy Jr as trustees.
William S & Lora Jean Kilroy Foundation's 2024 filing lists 3 officers; none of the 3 officers listed in 2024 report compensation.
Officers on the 2024 filing
Lora Jean Kilroy
Trustee
On filings since 2020
No compensation reported
Mari Angela Kilroy
Trustee
On filings since 2020
1 hr/week
No compensation reported
William S. Kilroy Jr.
Trustee
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about William S & Lora Jean Kilroy Foundation
How much does William S & Lora Jean Kilroy Foundation give each year?
William S & Lora Jean Kilroy Foundation gave $483K across 13 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $914K across 29 grants.
What is William S & Lora Jean Kilroy Foundation's typical grant size?
William S & Lora Jean Kilroy Foundation's median grant in 2024 was $5,000, and its average grant was $37,131, across 13 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from William S & Lora Jean Kilroy Foundation that year got $2K on average.
Where does William S & Lora Jean Kilroy Foundation give grants?
William S & Lora Jean Kilroy Foundation gives mostly in Texas: 100% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Houston, TX (12 grants).
Who are William S & Lora Jean Kilroy Foundation's largest grantees?
William S & Lora Jean Kilroy Foundation's largest 2024 grantees include The Joy School ($272,500 across 2 grants), Museum of Fine Arts Houston ($120,000 across 3 grants) and Houston Museum of Natural Science ($75,000), according to its 2024 IRS Form 990-PF. Together they received 97% of its itemized 2024 grant dollars.
How large is William S & Lora Jean Kilroy Foundation?
William S & Lora Jean Kilroy Foundation reported $11.7M in total assets on its 2024 IRS Form 990-PF. It paid out $489K in qualifying distributions that year, against a required minimum of $1.0M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What does William S & Lora Jean Kilroy Foundation fund?
No mission statement for the foundation is provided. Its 2024 grantees included organizations working in education, museums and the arts, environmental conservation, wildlife, health, and social services. See mission & focus areas ↑
How do I apply for a grant from William S & Lora Jean Kilroy Foundation?
William S & Lora Jean Kilroy Foundation has no public application process in the sources Grantable reviewed. Contact the foundation directly before submitting a request.
What is William S & Lora Jean Kilroy Foundation's EIN?
William S & Lora Jean Kilroy Foundation's EIN (Employer Identification Number) is 76-0169904. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). William S & Lora Jean Kilroy Foundation funder profile. GrantGraph. Retrieved October 21, 2026, from https://grantable.co/funders/william-s-and-lora-jean-kilroy-foundation-morg_517c48e65cc040e6836da8b32392cb10
BibTeX
@misc{grantable_760169904_2026,
author = {{Grantable}},
title = {{William S \& Lora Jean Kilroy Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/william-s-and-lora-jean-kilroy-foundation-morg_517c48e65cc040e6836da8b32392cb10},
note = {Accessed 2026-10-21. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from William S & Lora Jean Kilroy Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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