Alex has over fifteen years' experience at senior levels of politics, government, advocacy, and philanthropic organizations. Prior to joining PSFG in 2013, Alex was Executive Director of the Connect U.S. Fund, a donors’ collaborative focused on incentivizing collaboration as a tool to meet today’s global challenges. While a Director at the Ploughshares Fund, Alex founded the Fissile Materials Working Group, a coalition that she grew to 80 U.S. and international organizations providing action-oriented policy solutions to combat nuclear terrorism. Before her nonprofit experience, Alex served as a foreign policy and defense advisor to Congressman Stephen F. Lynch of Massachusetts. 

Alex is a Term Member with the Council on Foreign Relations, and serves on the boards of the Compton Foundation and Foreign Policy for America. She earned her M.S. in Foreign Policy and Security Studies from Georgetown University’s School of Foreign Service and a B.A. in International Affairs and Psychology, with a minor in French, from the University of Virginia.

Contact Alex with questions about overall PSFG strategy and engagement, the Nuclear Working Group, and advocacy.




Prior to joining PSFG in 2014, Rachel served as the Program Assistant for the Peacebuilding and Western Balkans programs at the Rockefeller Brothers Fund. Before entering the philanthropic sector, Rachel managed the Community Service Center at Ramapo College and taught Spanish at Cardinal Mooney High School in Florida. She also served as the resources editor of the Journal for Peacebuilding and Development. She holds an M.S. in Global Affairs from NYU and a B.A. in History and Spanish from Franklin and Marshall College. 

Contact Rachel with questions about capacity building (e.g., Annual Meeting), the Index, and peacebuilding.


cath thompson


Catherine ("Cath") Thompson supports PSFG’s outreach, programming, member stewardship, and operations. Previously, she was an Associate with the Programs and Practice team at Independent Sector, where she supported a network of over 500 philanthropies and nonprofits through capacity building and programming support. Cath founded and still manages PeaceMeals, a program that uses cooking, nutrition, and self-care to promote discussion and wellness after traumatic or difficult events. While a Scoville Fellow at the Truman National Security Project, she managed the Nuclear Nonproliferation Experts Group, helped plan their annual conference, and was responsible for managing grants. Cath’s field research and work in conflict and trauma have brought her to Morocco (as a Fulbright Scholar), Senegal, Northern Ireland, and Iraq. 

Cath holds an M.A. in International Relations from Queens University Belfast, in Northern Ireland, which she attended as a George Mitchell Scholar, and undergraduate degrees in Peace and Conflict Resolution Studies, International Relations, Political Science, and African Studies from the University of Wisconsin – Madison.

Contact Cath with questions about membership, programs, and human-centered design for intentional gatherings.




Prior to joining PSFG, Genevieve interned at the Education for Peace in Iraq Center and spent a semester studying abroad at the University of Jordan where she studied Arabic, Arab media, and U.S. foreign policy in the Middle East. She previously interned at the International Center for Terrorism Studies, where she conducted research on terrorist organizations in the Middle East and South Asia. Genevieve’s passion in humanitarian and security issues has also taken her to volunteer in Nepal and Panama. Genevieve graduated from the University of Maryland, Baltimore County and holds a B.A. in Global Studies with a concentration in international affairs. 

Contact Genevieve with general questions about PSFG, capacity-building (e.g., newsletter, webinars, publications), and humanitarian issues in the Middle East.


lydia t. johnson


Lydia is a recent graduate from Howard University. An Atlanta native, Lydia received B.A. degrees in Political Science and Spanish, and held minors in Japanese and French. She is a passionate language learner, and hopes to someday become fluent in at least six languages. On campus she was President of the International Affairs Society and the United Nations Association of the U.S. Howard Chapter, and is a member of Alpha Kappa Alpha Sorority, Incorporated. She has a deep passion for international education and global affairs, and has studied, volunteered, and interned abroad in six countries. Lydia is most looking forward to exploring the non-profit sector of international affairs with PSFG, and expanding her familiarity with the field, particularly in regards to current challenges facing global peace and security. Lydia is also a lover of cute animal videos, an amateur chef, and Marvel movie aficionado.