The staff of the Peace Development Fund is composed of dedicated people with years of experience in both the foundation world and as social activists, and young people committed to a career of social activism. PDF considers itself lucky to be able to find staff members who are dedicated to the ideals of social justice not only in their work for the foundation but also in their personal lives.

Paul Haible

Executive Director
E-mail: Paul Haible

Executive Director Paul Haible has more than forty years experience working in the Public Foundation movement, serving in all the roles: staff, board member, advisor, donor, consultant, volunteer and grant committee member, and as PDF’s Executive Director from 2004 until today. He is a co-founder of the Funding Exchange, worked for Vanguard Public Foundation for twelve years, served on boards of several of the Funding Exchange member funds, as well as the board of Seva Foundation. He worked for five years for the Indigenous Environmental Network, serves as an advisor to the Flying Eagle Woman Fund, represents PDF at the United Nations under PDF’s Consulting Status, and is a delegate at the UN for the Rigoberta Menchu Tum Foundation

Alexis Horne

Office Assistant
Email: Alexis Horne
413-256-8306 x102

Alexis was raised just two streets away from our Amherst PDF office. She is a graduate of Stoneleigh-Burnham in Greenfield, received a degree in International Relations from Bradford College and a Paralegal certification from Northeastern University. After decades in the insurance industry and working as a Paralegal, she was looking for a change in careers. The opportunity to work at PDF as a temporary employee arose and she jumped at the chance. As the great-granddaughter of a Suffragist and the daughter of an LGBTQ activist, she was happy to join PDF and carry on the family legacy of assisting in progressive movements.

Emily Serafy Cox

Foundation Officer
E-mail:  Emily Serafy Cox
413-256-8306 x100

Emily Serafy Cox has been a professional community organizer since 2009, working with grassroots, base-building organizations in California and Massachusetts on issues from transportation justice and redistricting to birth work and housing justice. Emily holds a Bachelor’s of Fine Arts in Dance and Women’s Studies from the University of Minnesota – Twin Cities and was elected to the Northampton School Committee (a.k.a. School Board) in 2019.

Brennan Tierney

Foundation Associate
Email: Brennan Tierney
413-256-8306 x107

Brennan Tierney joined PDF as a Foundation Associate in November 2019. He coordinates communications and events, facilitates PDF’s annual Special Initiative, and assists with the Community Organizing Grant cycle. Brennan holds a Bachelor’s Degree in Legal Studies and Anthropology from the University of Massachusetts, Amherst, where he was involved with the UMass Fossil Fuel Divestment Campaign, a student-run cooperative and a program that facilitated courses on grassroots community organizing. He lives on Nonotuck, Nipmuc, and Pocumtuc land, known today as Northampton, MA.

Rose Westbrook

Director of Administration and Finance
Email: Rose Westbrook
413-256-8306 x106

Rose Westbrook, Director of Administration & Finance, has more than a decade of management and leadership experience in nonprofit organizations.  Rose progressively gained experience in faith-based, higher education, public health and health care organizations.  She has been a thought-partner on leadership teams and community boards. She has been a leader and cultivator of high-performing teams of professionals and volunteers to achieve organizational goals. She strives to balance internal and external priorities with an eye on operational excellence and a commitment to diversity, inclusion and equity. Rose has a Bachelor’s in Human Services Administration, a Master’s in Human Resource Development from American International College, and a Fellow graduate of The Partnership Inc.