Katherine Mabis McKenna Foundation
At a glance
Key takeaways
- If your organisation works in education or the environment in Westmoreland County, Pennsylvania, this foundation is worth approaching, since those are its stated themes and its priority area.
- Its grants are mostly modest: half of its grants to organisations were $20,000 or less, and about 8 in 10 fall between $4,400 and $150,000, so a request in that range is realistic, though its largest grant was $1,000,000 and that band is not a ceiling.
- Applications are accepted on a rolling basis, so a letter of request addressed to the Chair at the Latrobe mailing address can be sent at any time.
- In the most recent filing, 87% of its grant dollars to organisations went to organisations it had also funded in earlier filings, so it leans towards repeat support, and a first approach should explain clearly how your work connects to its themes.
Overview
Katherine Mabis McKenna Foundation is a US private foundation administered by its trustee, BNY Mellon, in Latrobe, PA.
What they fund
Profile derived from the foundation's IRS Form 990-PF filings (TY2024, TY2023, TY2022) and web pages about the foundation (3riversquest.wvu.edu), with every statement checked against those sources. Sources read on 13 October 2026.
Priority Areas
The foundation makes modest-sized grants to support educational and environmental projects in Westmoreland County, Pennsylvania. Its grant record includes educational institutions, environmental conservation bodies, museums and arts organisations, community and civic bodies, and organisations serving food, health and social needs. The record shows funding for capital support, general support and property acquisition, alongside educational purposes such as an LPN programme, nursing scholarships and internships, and cultural purposes such as art conservation. Its grants reach charitable organisations and a public county body, across a variety of local institutions.
Themes
- Educational projects
- Environmental projects
Geographic Focus
Priority: Westmoreland County. (as reported in other published sources)
How to apply
Send a letter of request to Ms. Linda McKenna Boxx, Chair, at the foundation's Latrobe mailing address.
Application success factors
- Repeat giving: In its TY2024 filing, 87% of its grant dollars to organisations went to organisations it had also funded in its TY2022 or TY2023 filing.
- Grant size: Across its TY2022, TY2023 and TY2024 filings, half of its 208 grants to organisations were $20,000 or less.
Where grants go
From grants to organisations in the foundation’s filings for tax years 2022–2024.
Grant dollars by state
- The largest single recipient received 20% of grant dollars to organisations.
- In tax year 2024, 87% of grant dollars went to organisations Katherine Mabis McKenna Foundation had funded in earlier filings.
- No grants were paid directly to organisations outside the US.
- <1% of grant dollars went to intermediaries that regrant to other organisations.
Grants
How much do they typically give?
Share of 72 grants in tax year 2024 by size
Median $17,000 (tax year 2024)
The largest grants to organisations in the foundation’s latest filing:
- Seton Hill University · Capital support$1,000,0002024 tax year
- Westmoreland County Community College Educational Foundation · Lpn program$367,5002024 tax year
- Westmoreland Cultural Trust · Capital support$361,0002024 tax year
- Westmoreland Land Trust · Property acquisition$260,0002024 tax year
- Ligonier Valley YMCA · Capital support$250,0002024 tax year
- Adelphoi · Capital support$195,0002024 tax year
- Western Pennsylvania Conservancy · General support$150,0002024 tax year
- Westmoreland Cultural Trust · General support$120,0002024 tax year
Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.
Officers and directors
- Peter M Boxx — Director
- Marion Warzel — Secretary
- Zan McKenna Rich — Vice Chairman
- Nathan M Boxx — Treasurer
- Linda McKenna Boxx — Chairman
From the latest Form 990-PF filing
3 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2022 tax year | $5,099,178 | $4,290,978 | $88,283,924 | Filing for 2022 tax year |
| 2023 tax year | $4,821,800 | $3,893,668 | $93,221,473 | Filing for 2023 tax year |
| 2024 tax year | $5,302,189 | $4,378,000 | $99,292,390 | Filing for 2024 tax year |
Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.
Sources
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At a glance

Applying to Katherine Mabis McKenna Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- (724) 537-6900
- Latrobe, PA (office of its trustee, BNY Mellon)

Applying to Katherine Mabis McKenna Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- (724) 537-6900
- Latrobe, PA (office of its trustee, BNY Mellon)