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The Nelson A. Rockefeller Center
Dartmouth College
6082 Rockefeller Hall
Hanover, NH 03755 USA
603 646-3874
Rockefeller Center
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Rockefeller Center Staff Profiles

Rockefeller Center Directors

Rockefeller Center Directors

Andrew Samwick Andrew A. Samwick is the Director of the Rockefeller Center and the Sandra L. and Arthur L. Irving '72a P '10 Professor of Economics, as well as a research associate of the National Bureau of Economic Research. The 2014-2015 academic year marks 20 years of teaching at Dartmouth College for Professor Samwick and 10 years as Director of the Center. In 2003 and 2004, he served as chief economist on the staff of the President’s Council of Economic Advisers. Since joining the Dartmouth faculty in 1994, his scholarly work has covered a range of topics, including pensions, saving, taxation, portfolio choice, and executive compensation. Professor Samwick has been published in American Economic Review, Journal of Political Economy, Journal of Finance, Journal of Public Economics, and a number of specialized journals and conference volumes. He graduated summa cum laude with a degree in economics from Harvard College and received his Ph.D. in economics from the Massachusetts Institute of Technology. He blogs about economics, politics, and current events. Professor Samwick's academic web page.  

Sadhana Hall Sadhana W. Hall is the Deputy Director of the Rockefeller Center. In this capacity, Hall designs, implements, and oversees programs for undergraduate students focusing on leadership, public policy, and civic engagement. She also oversees the overall operations of the Center and is a member of the senior management team that develops the overall vision and strategic planning initiatives for the Center. The 2014-2015 academic year marks her 10th year at the Center. Prior to this appointment, she worked for more than 20 years with communities around the world in strategic planning, staff and program management, financial planning, and program development. In Tuvalu, Bhutan, and the Caucasus, she helped implement programs in health, agriculture, economic development, and water supply. In the US, Ms. Hall's experience includes managing primary healthcare programs and extending health services to disadvantaged communities in the state of New Hampshire. She served as director of international relations with the Global Health Council, where she also directed three annual global health conferences with 1,500 participants representing 80 countries. She holds a B.S. from the University of Delhi, India, a M.A. from the University of Rajasthan, India, and a M.P.H. from the University of North Carolina at Chapel Hill's School of Public Health.

shaiko Ronald G. Shaiko is a Senior Fellow and the Associate Director for Curricular and Research Programs at The Nelson A. Rockefeller Center for Public Policy and the Social Sciences. The 2015-2016 academic year marks his 29th year of university teaching and his 15th year at Dartmouth College. In November of 2007, he received the Linda '82 and Paul Gridley Faculty Fellow Award from the Dean of the College; the award recognizes exemplary faculty involvement outside of the classroom. Prior to coming to Dartmouth, Professor Shaiko was the Fulbright Distinguished Chair in American Politics in the American Studies Center at Warsaw University in Poland during the 2000-2001 academic year. Throughout the decade of the 1990s, Professor Shaiko taught at American University, where he founded and served as the academic director of the Lobbying Institute. During his 10 years at American, Professor Shaiko served as an American Political Science Association Congressional Fellow in the U.S. House of Representatives in 1993-1994 and as a Democracy Fellow at the United States Agency for International Development in 1998-1999. During his twenty-nine years of teaching, he has received more than $1.3 million in grants, awards, and fellowships. He holds a B.A. in Political Science and History from Ursinus College and an M.A. and Ph.D. in Political Science from the Maxwell School of Citizenship and Public Affairs at Syracuse University.

Curricular and Research Programs

Primary Responsibilities

The Curricular and Research area manages the curricular activities at the Center. These include the Public Policy Minor, Policy Research Shop, Dartmouth-Oxford Exchange, Senior Honors Thesis Grants, Center for the Study of the Presidency and Congress, Faculty Workshops, Classroom Enhancement Grants and Faculty Grants.



photo of Dr. H. Gilbert Welch Dr. H. Gilbert Welch, MD, MPH, is a general internist and Adjunct Professor of Public Policy at the Nelson A. Rockefeller Center whose research focuses on the problems created by medicine's efforts to detect disease early: physicians test too often, treat too aggressively and tell too many people that they are sick. Most of his work has focused on overdiagnosis in cancer screening: in particular, screening for melanoma, cervical, breast and prostate cancer. His recent book, Should I be tested for cancer? Maybe not and here's why" (UC Press 2004) was written while he was a Visiting Scientist at the International Agency for Research on Cancer - the cancer section of the World Health Organization in Lyon, France.

wheelan website Charles Wheelan, '88, Senior Lecturer and Policy Fellow, formerly a senior lecturer in public policy at the Harris School at the University of Chicago, the Rockefeller Center welcomed Professor Wheelan back to Dartmouth fulltime in June 2012. Since 2006, Wheelan has taught economics and public policy courses at Dartmouth during sophomore summer. He has also served as a correspondent for The Economist, and written freelance articles for the Chicago Tribune, the New York Times, and the Wall Street Journal. In addition to his work at Dartmouth, he has spent time as a speechwriter, a Congressional candidate and in other policy-related positions that inform his academic work. He has authored three books: Naked Economics: Undressing the Dismal Science, Naked Statistics: Stripping the Dread from the Data, and The Centrist Manifesto. He is the founder of the Centrist party. He earned his B.A. from Dartmouth College, his M.A. in public affairs from Princeton University, and his Ph.D. in public policy from the University of Chicago.

post_headshot Margaret Post is a Visiting Scholar at the Nelson A. Rockefeller Center for Public Policy. Post holds a Doctorate in Social Policy from the Heller School for Social Policy and Management at Brandeis University, and a Master of Public Policy from the Humphrey Institute of Public Affairs at the University of Minnesota. For over ten years, she has worked as a community organizer, educator, and scholar. Her research interests include the role of grassroots organizations in social policy change and the civic development of young people and new immigrants. In addition to teaching courses on organizing and public policy, Post conducts trainings for a broad range of non-profit and political organizations. In 2007, Post received the K. Patricia Cross Future Leaders Award from the Association of American Colleges and Universities and the Bailis Family Social Justice Award from the Heller School at Brandeis University. She currently serves on the Advisory Board of the publication, Diversity and Democracy, and is a member of the Next Generation Engagement Project at the New England Resource Center for Higher Education. Prior to joining the Rockefeller Center, Post was Director of the Donelan Office of Community Based Learning at Holy Cross (Worceseter, MA).

 herschel nachlis Herschel Nachlis is Research Assistant Professor of Government, Postdoctoral Fellow, and Manager, Policy Research Shop at the Nelson A. Rockefeller Center for Public Policy. He is also Assistant Professor of Government at Franklin & Marshall College (on leave). He received his Ph.D. and M.A. in Politics and Social Policy from Princeton University, and B.A. in Political Science from Macalester College. He studies and teaches American politics and public law, focusing on health and social policy. His research examines the political development of mental health policy in the United States and variation in the diagnosis and treatment of mental health issues. His research interests include the politics of health and disease more generally, regulatory policy, diversity and representation in legal and bureaucratic institutions, constitutional development and judicial policymaking, and well-being and public policy.

 derek epp Derek Epp is a Postdoctoral Fellow, Visiting Assistant Professor, and Manager, Policy Research Shop at the Nelson A. Rockefeller Center for Public Policy. He received a Ph.D. and M.A. in American Politics with a minor in Public Policy from the University of North Carolina at Chapel Hill. He has a B.A. in political science from the University of Maryland at College Park. His research agenda focuses on policy change, asking why some policies persist – remaining the status quo for decades – while others undergo frequent adjustments. To this end, his research measures the capacity of institutions to attend to political information and then tracks the allocation of that attention across issues: what issues receive attention, for how long, and to what effect. He also studies criminal justice with a particular focus on racial patterns in police traffic stops. For more information please visit:


dasilva  Jane DaSilva Jane DaSilva is the Program Coordinator for Curricular and Research Programs at the Nelson A. Rockefeller Center for Public Policy and the Social Sciences.  She manages the Public Policy Minor, the Policy Research Shop, the Dartmouth-Oxford Exchange (Keble College), the Senior Honors Thesis Grants, the Classroom Enhancement Grants, Faculty Workshops and Faculty Grants. She has worked at the Rockefeller Center for nearly nine years, coming from a six year stint at Tele Atlas in Lebanon, NH, where she worked in the Sales and Marketing Department. Prior to Tele Atlas, Jane worked 13 years in the Controller’s Office at Dartmouth College, bringing a broad background to her work here at the Rockefeller Center. Jane is originally from the Midwest and has lived in Louisiana for a time. Drawn by her sister, as well as the music and culture, the Upper Valley has been her home now for twenty-eight years.

Co-Curricular Programs

Primary Responsibilities

The Co-Curricular Program team manages a variety of activities at the Center that complement and support academic learning and helps students to develop their skills as future leaders. These include Student Discussion Groups, Internship Funding, Management and Leadership Development Program, Civic Skills Training, Rocky Leadership Fellows Program, First-Year Fellows, Student Special Projects and Public Programs. In addition, the Co-Curricular team facilitates the work of the Center through financial management of the Center’s resources, developing and managing a consistent and effective communications strategy, providing an effective approach to information management and the use of technology, overseeing the Center’s development efforts, and managing the Center’s space and facilities.

Tatyana Bills Bio Picture Tatyana Bills is a Program Coordinator for Co-Curricular Programs at the Nelson A. Rockefeller Center for Public Policy and Social Sciences. Prior to joining the Rockefeller Center’s team, she worked at the John Sloan Dickey Center for International Understanding as an Office Assistant and a Student Adviser for International Internships and Fellowships. Previously, Tatyana served as a Mandela Washington Fellowship Program Assistant for the President Obama’s Young African Leaders Initiative, and earlier as a member of the internships and fellowships Selection Committee for Think Impact, Seeds of Peace, and American University in Kosovo. Tatyana graduated in 2014 from Dartmouth College with a Master of Arts in Liberal Studies in Globalization. She also holds a combination B.A. & M.A. degree in Romance Languages, Literature, and Education from Kuban State University of Krasnodar, Russia. Having a Russian cultural background, she appreciates cultural diversity and loves learning about other cultures. She sees herself as a cultural bridge between people, which inspires her to teach cultural awareness and inclusion to students as one of the core values of leadership. In her free time, Tatyana and her boyfriend enjoy dancing West Coast Swing and traveling.

Celtrick Bio Elizabeth Celtrick is the Assistant Director of Co-Curricular Programs for the Nelson A. Rockefeller Center for Public Policy and the Social Sciences. In this position, she supports the operations of the Center's experiential learning programming which enhances students' academic experience and develops their leadership potential. Prior to joining the Rockefeller Center staff, she worked for the U.S. Department of Army as a program specialist for the U.S. European Command, Office of the Staff Judge Advocate in Stuttgart, Germany and then more recently as a Contracting Officer's Representative for the U.S. Army Corps of Engineers at the Cold Regions Research and Engineering Laboratory (CRREL), in Hanover, New Hampshire. In 2010, she was awarded the Joint Civilian Service Achievement Award, which recognizes non-military personnel for outstanding achievement in service to the Department of Defense. Elizabeth holds certifications in Project Management (PMP) and Knowledge Management (CKM). She earned a B.A in History from Southern Adventist University and a M.A. in International Studies from the University of Wyoming. She and her husband relocated to the Upper Valley after living overseas for more than ten years. She is a member of the Lebanon Planning Board and serves on the city's Capital Improvement Committee.

Robin Donovan Robin T. Frye is a Program Officer for Co-Curricular Programs for the Nelson A. Rockefeller Center for Public Policy and the Social Sciences. She has been with the Center since 2009 and at Dartmouth since 2005. Robin manages the Management and Leadership Development Program (MLDP) and the Dartmouth Leadership Attitudes and Behaviors program (D-LAB). She is also the department representative for the Dartmouth Bystander Initiative. Robin has a background in marketing, hospitality, and real estate. She and her husband own and manage a rental property in Lebanon, NH and she is a part-time bartender for weddings at Ascutney Mountain Resort, which she describes as a really fun job. Robin recently became a member of the Claremont, NH La Leche League, an international nonprofit that supports nursing mothers. She helps spearhead their marketing efforts. Robin is a graduate of Hanover High School and holds a Bachelors Degree in marketing from Franklin Pierce College, where she graduated cum laude. She also holds an Associates Degree in sales and marketing management from Hesser College, where she graduated magna cum laude and was a member of Phi Theta Kappa honor society. Robin spends most of her off time raising her toddler son, Oliver. When she has free time, she enjoys studying nutrition, cooking, baking, making home herbal remedies, and hiking with her dog, Ophelia.

Joanne B. Needham Joanne B. Needham is the Coordinator of Public and Special Events for the Nelson A. Rockefeller Center for Public Policy and the Social Sciences. She manages all details associated with the visit of public lecturers to the Rockefeller Center and their interaction with students and faculty. Before joining the Center in 2011, Joanne worked for 10 years at the Global Health Council, most recently as the Director of the Annual International Conference and previously as Conference Program Coordinator. In her role as Director, she oversaw all processes related to the planning, development and operations of the conference, with specific responsibilities of establishing the conference theme and the plenary session topics and speakers. During Joanne's tenure, the conference grew to 2,500 attendees from more than 70 countries. Prior to working at the Council, she spent 10 years as an editor for the American Association of Neurological Surgeons, publishing books on neurosurgical best practices and the peer-reviewed monthly journal, The Journal of Neurosurgery. For 10 years before that, she worked as a project manager/programmer for Houghton Mifflin Company, producing educational software products. Joanne holds a BS in Mathematics from Fairfield University, CT. She lives in White River Junction, VT will her husband Andy and her dog Lily. Joanne volunteers as an usher at the Hopkins Center and Northern Stage, and as a reading mentor at White River Elementary School in the Everyone Wins VT program.

Vincent_Mack_Staff Vincent L. Mack is a Program Officer for the Nelson A. Rockefeller Center for Public Policy and the Social Sciences. Prior to joining the Rockefeller Center's staff, Vincent lived in Germany, working extensively for the Congress-Bundestag Youth Exchange for Young Professionals, a program partnered through the United Nations and the Department of the State. As his fluency in Germany progressed, Vincent also served as the first American with Germany's largest international development organization, Kindernothilfe, working as a grant writer in their Program Evaluation department. With a focus on recruitment, leadership development, and service at the University level, Vincent spent two additional years abroad in Germany working with Connexxion, a Christian non-profit organization at the Technical University of Braunschweig. He holds a Masters degree in Public Administration with a concentration in Human Resources from Valdosta State University. In 2005, he graduated from Georgia Southern University with a B.S. in Political Science and a concentration in International Affairs. Although a native Bostonian, Vincent was raised in Warner Robins, Georgia. An avid traveler, he thoroughly enjoys one-on-one conversations, exploring other cultures and places, and has been to nearly 25 countries. His experiences abroad continually inspire him to encourage Dartmouth students to widen their global perspective through leadership and public service.

lynnspencer Lynn M. Spencer is the Finance Manager for the Nelson A. Rockefeller Center for Public Policy and the Social Sciences. She manages the financial affairs, as well as the facilities and office management. Prior to coming to the Rockefeller Center, she has worked as a CPA for Ernst & Whinney, a public accounting firm; as an Accounting Supervisor for Bolt, Beranek and Newman, an acoustical consulting company; as financial analyst for Fleet National Bank; and most recently, as Purchasing and Cost Manager for the facilities department at Kimball Union Academy, a private high school. She was involved with purchasing, budgeting, project planning, cost tracking and compliance reporting. Spencer holds a B.S. in Accounting from Boston College, where she graduated magna cum laude. She and her husband have raised their three children on their farm in Vermont. Their passions are focused on outdoor activities including cycling, Nordic skiing, hiking and adventure travel.

sam williamson bio Sam Williamson is a Program Coordinator for Co-Curricular Programs at the Nelson A. Rockefeller Center for Public Policy and Social Sciences. Prior to joining the team, he diverted from a potential career in international diplomacy to become a school administrator at an innovative K-12 charter school in Ogden Utah. There, he designed programs to boost core test scores and spearheaded education technology research and development: designing cutting-edge networks for two new schools and securing a one-to-one ratio of computers to students through donations and grants. Sam spent two years living in Santiago, Chile volunteering as a Spanish interpreter and designing programs for leadership development in some of the poorest areas of the country. He graduated in 2005 from Skidmore College with a B.A. in Anthropology and a minor in Studio Art. He was born in Hanover and raised in Hartland, VT where he grew up ski racing, flying airplanes, and creating and selling commissioned artwork.

Last Updated: 9/28/15