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Foundation Staff


Mary Lee Gannon

President | 412-784-4277

Mary Lee Gannon, ACC, CAE is a 19-year CEO, leading organizations worth up to $26 million. She has been president of Forbes Health Foundation, Ohio Valley General Hospital Foundation, Three Rivers Advertising Specialty Association as well as grants and public relations director of Avonworth School District and a reporter for The Pittsburgh Post-Gazette.


Mary Lee is a Certified Association Executive (CAE), International Coach Federation Certified Coach (ACC), alumnus of the UCLA Mindful Awareness Practices Program and the Harvard Medical School and McLean Hospital Coaching in Medicine & Leadership Conference, scholarship recipient to the Search Inside Yourself Leadership Institute at Georgetown University’s Institute for Transformational Leadership – created at Google and author of two books. She was awarded the Honorary Woman of Courage Award by Pennsylvania Women Work, the Lifetime Achievement Award by Pittsburgh Society of Association Executives and the Women of Integrity Award by Pittsburgh Professional Women.


Mary Lee lives with her husband Arnie von Waldow in O’Hara Township with their dog Bailey and any of their six children, spouses, grandchild or dogs who come home to visit.


Brigid Pettit

Director of Partnership Giving & Office Systems | 412-784-4215

Brigid Pettit is a Virginia native who worked for The John F. Kennedy Center for the Performing Arts and The Carlyle Group in Washington, D.C. before moving to Pittsburgh to join the St. Margaret Foundation. She is a graduate of Virginia Tech and holds a bachelor's degree in Religion and Culture and a master's degree in Public Humanities.


Brigid lives in Shadyside with her cats, Cleo and Wally.

Board of Directors

Chairperson: Stephen Botos

​Vice Chairperson: Michelle Keane Domeisen, D. Min.

Secretary: E.J. Donnelly, MD

​Treasurer: C. Talbot Heppenstall, Jr.

​St. Margaret Foundation President: Mary Lee Gannon

Robin Felton Baum
David R. DiBenedetto, Sr.
Peter G. Ellis, MD

Eric A. Frankel, MD
Judith W. Granato
John Lagnese, MD

David T. Martin

David Patton

Vincent J. Silvaggio, MD

Seth Silverman
William H. Simpson
Patrick N. Smith, MD

Marshall W. Stafford, MD

C. James Zeszutek

Emeritus Board Members

Dominic Abbott

Franklin E. Angew, III

Charles C. Bender

Alex D. Condron

Kevin O. Garrett, MD

John Harmon, Esq.

Stanley J. Kevish

Robert C. McCarthy

Stephen H. McKnight

Richard J. McSorley

Donald Middleton, MD

W. Scott Sanford

Estella Smith

Bernard E. Stoecklein, Jr.

Neil Y. Van Horn

The Very Reverend George L.W. Werner


Volunteers give life and heart to the programs sponsored and undertaken by St. Margaret Foundation and UPMC St. Margaret. We welcome the time, talent, and enthusiasm of our volunteers. If you are interested in volunteering with the Foundation or at the hospital, please contact Volunteer Services at 412-784-4081. You may also fill out an online volunteer application here.

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