Sidwell Friends

Stephen Woolpert holds a Ph.D. in Political Science from Stanford University. He is a Professor in the Politics Department at Saint Mary's College, where he served as the Dean of Liberal Arts from 2004 to 2015. He specializes in Public Law and Environmental Politics.

Steve has taught for over 40 years and has led transformative sustainability efforts at St. Mary’s and in the wider community.

Read more about Steve's work on St Mary's College Faculty Profile page here.

Adolph W. (Bill) Johnson Jr., M.D. '72 is a board-certified Family Medicine physician, treating patients of all ages in the greater Washington, D.C. area for more than thirty-five years. As president of his practice, Associates in Family Practice, Bill has created an environment where he and his team focus on providing compassionate, comprehensive care for individuals and families. Bill is passionate about disease prevention, physical and mental wellness, and providing exceptional, equitable care to all of his patients.

Bill began his training at Cornell University ('76) and Rutgers University's Robert Wood Johnson Medical School ('82), completing his internship in General Surgery at George Washington University Medical School ('83). He then served as a Lieutenant in the U.S. Public Health Service in Nassawadox, VA for two years, serving as the sole full-time medical practitioner for a large multicultural migrant population. In 1987, Bill completed his Family Medicine residency at University of Maryland Medical Center and joined the practice he now runs as an Associate Partner.

Outside of work, Bill enjoys running, cooking, hiking, and spending time with his family, including his wife, Carol Mason, his grown children, Lindsay Johnson '07 and Ian Johnson '09, his daughter-in-law Jessica, and his granddaughter, Emilia.

Bio courtesy of Bill Johnson '72

Kelsey was inspired to start Mothers Out Front after becoming a mother and feeling despair about how climate change will impact her children’s lives. Struck by how few opportunities people had to meaningfully engage in addressing the problem, she set out to change this under the guidance of veteran organizer and social movement scholar Marshall Ganz. Kelsey is co-founder and former president of Align Technology, Inc., maker of Invisalign. She has served on the boards of the Environmental Working Group and Grist Magazine, and currently serves on the board of the Winslow Foundation and Convergent Dental. A native of both Colorado and Washington DC, Kelsey graduated from Harvard College and received her M.B.A. from Stanford University. She lives in Massachusetts with her husband, Sam Myers, and their two daughters, Sophie and Lucy. Her favorite place to spend time with her family is in the mountains around Crested Butte, CO.

Bio courtesy of Mothers Out Front 

Ambassador Katherine Tai was sworn in as the 19th United States Trade Representative on March 18, 2021. As a member of the President’s Cabinet, Ambassador Tai is the principal trade advisor, negotiator, and spokesperson on U.S. trade policy.

Prior to her unanimous Senate confirmation, Ambassador Tai spent most of her career in public service focusing on international economic diplomacy, monitoring, and enforcement. She previously served as Chief Trade Counsel and Trade Subcommittee Staff Director for the House Ways and Means Committee in the United States Congress. In this capacity, Ambassador Tai played a pivotal role in shaping U.S. trade law, negotiations strategies, and bilateral and multilateral agreements, including the recently re-negotiated United-States-Mexico-Canada Agreement.

Ambassador Tai is an experienced World Trade Organization (WTO) litigator. She previously developed and tried cases for the Office of the United States Trade Representative, eventually becoming the Chief Counsel for China Trade Enforcement. Before transitioning to federal service, she practiced law in the private sector, clerked for district judges, and taught English in Guangzhou, China.

Ambassador Tai earned a Bachelor of Arts degree in history from Yale University and a Juris Doctor from Harvard Law School. She is fluent in Mandarin.

Bio courtesy of the Office of the United States Trade Representative