About Us

Director of Educational Projects at CHNM and an Associate Professor in the Higher Education Program at George Mason University. Co-directs multiple educational websites including World History Sources and Women in World History. Academic Program Director for Teaching American History grants in Virginia and Maryland. Holds BA from UC Berkeley and PhD from Johns Hopkins University. Author of works on teenage girls’ culture and history education.

Nate Sleeter directs current education projects at the center and serves as the point of contact for legacy education projects. A former classroom teacher, his work at RRCHNM includes helping to develop, administer, and research history education resources for K-16 students and educators. He is especially interested inquiry-based approaches that explore how historians analyze evidence. He has also worked to develop online and hybrid courses including Teaching Hidden History, Hidden in Plain Sight, and Virginia Studies. Nate has a PhD from Mason on the history of gifted children in the United States.

Timmia King is a Ph.D. canidate in the History department and a Graduate Research Assistant at the Roy Rosenzweig Center for History and New Media. She is currently working on a project called the HBCU History & Culture Access Consortium. Timmia received her bachelor’s degree in African American Studies from Howard University, and a dual master degree in African American and African Diaspora Studies and Library Sciences from Indiana University. Her research interests include African American memory work, specifically their self-documenting practices and generally 20th century military history of Africans apart of the diaspora and on the continent.

Annabelle Spencer is a PhD student in History, specializing in Women & Gender History and Digital Humanities. She is a Graduate Research Assistant at the Roy Rosenzweig Center for History and New Media (RRCHNM) and an affiliate for the Center for Mason Legacies (CML). She received her BA in History from Austin Peay State University and MA in History‬ from George Mason University. At RRCHNM, she has worked on the Smithsonian HBCU History, Culture, and Access Consortium (HCAC) Project and R2 Studios’ podcasts Worlds Turned Upside Down and Your Most Obedient and Humble Servant. Currently, she is supporting the center’s digital pedagogy initiatives.

Jason A. Heppler is a historian and senior web developer at the Roy Rosenzweig Center for History and New Media. He specializes in the twentieth century environmental history of the North American West and Great Plains, focusing on political, urban, and agricultural histories surrounding land use, climate, political change, and the experience of landscapes. He is the author of Silicon Valley and the Environmental Inequalities of High-Tech Urbanism (2024), co-editor of Digital Community Engagement: Partnering Communities with the Academy (2020), and co-creator, technical lead, or project principal on several digital history projects. Additionally, he is an Affiliate Fellow at the Center for Great Plains Studies at the University of Nebraska-Lincoln.

Currently Director of City as Our Campus at Winchester Thurston School in Pennsylvania. Former Outreach Manager on Teachinghistory.org. Served as Associate Director of Education at Bush-Holley Historic Site. MA in American History from Maxwell School at Syracuse University with specialization in African American history and race.

Served as project manager from 2007-2010. Currently digital history associate in Public Projects at CHNM working with Teaching History Commons. PhD candidate in American history at George Mason University with research interests in 19th-century Southern industrial history and intersection of new media and historical presentation.

Director of Public Projects at the Roy Rosenzweig Center for History and New Media and Research Assistant Professor in the History and Art History Department at George Mason University. BA in American Studies from Georgetown University; doctorate in American Studies from University of Minnesota. Directed and co-directed multiple award-winning digital projects on historical thinking.

Margaret Jacks Professor of Education and of History (by courtesy) at Stanford. Directs Stanford History Education Group and PhD program in History Education. 2003 recipient of Frederic W. Ness Award. 2007 recipient of American Historical Association’s William Gilbert Prize.

Former high school history and civics teacher who served as co-director of the Stanford History Education Group. Earned PhD in Curriculum and Teacher Education in 2005. Recently co-directed Historical Thinking Matters and teaches history teacher-candidates. Has worked with K-12 teachers across multiple states on professional development funded by NEH and other organizations.

Associate Professor in the Department of History and Art History at George Mason University and the Director of the Roy Rosenzweig Center for History and New Media. Research focuses on European and American intellectual history and the intersection of history and computing. Co-author of Digital History and author of Equations from God. Inaugural ACLS Digital Innovation Fellow.

Joined in September 2010. Previously served as Deputy Executive Director of the Abraham Lincoln Bicentennial Commission. Earlier experience includes Education Director roles at Long Island Museum and Old York Historical Society. Holds BA in History from College of William and Mary and MA in History Museum Studies from Cooperstown Graduate Program.

Graduate student at George Mason University pursuing MA in U.S. and Applied History. Earned BA in History from Utah State University in 2011. Completed internship with Bear River Heritage Area documenting cemeteries in northern Utah and southeastern Idaho.

Headed the Voice of America’s radio and TV Tibetan language broadcasts for more than 15 years. Served as Assistant Professor in Philosophy and Religion at UNC Wilmington and as Program Officer at NEH. PhD in Religious Studies from University of Virginia. Published extensively on Tibetan and Indian Buddhism and 19th-century American Spiritualism.

Earned BA in history at St. Mary’s College of Maryland and MA at George Mason University. Assistant Editor of The Papers of the War Department digital archiving project. Previously worked on First Federal Congress project. Head Coach of St. Mary’s College of Maryland Crew Team.

Co-author of History Matters: A Student Guide to U.S. History Online. Author and editor of multiple works on American film and motion pictures. PhD in history from Johns Hopkins University and teaches at George Mason University. Specializes in 19th- and 20th-century American cultural history, media history, and film history.

Earned BA in theatre from George Mason University in 2008. Interests include social media, digital content curation, and gender studies.

Graduate research assistant specializing in modern European history. Former attorney and nonprofit professional with research interests in legal history and the history of charitable organizations in Europe and America.

Former Northwest Pasadena (CA) English teacher and Los Angeles college access program director. Doctoral student in Education at UC Santa Cruz. Teaching and research interests centered on equity and diversity policies, curriculum design, and assessment evaluation.

Doctoral student in colonial Latin American history at George Mason University. Previously taught fifth grade (bilingual) and kindergarten in Austin, Texas. Holds master’s degrees in Latin American History and Library Science.

Former high school history teacher currently teaching in Educational Studies department at Carleton College. Research focuses on equity and school reform. Author of Excellence For All about school reformers transforming public education.

Doctoral student specializing in modern Latin America. Primary research focuses on national and cultural identity in modern Argentina through soccer lens. Over a decade experience as high school Spanish and history teacher and K-12 Social Studies Program Manager in North Carolina. AP European History exam reader.

Second-year doctoral student in School of Education at Stanford. Formerly taught high school social studies in Iowa and Texas.

CHNM developer specializing in web-based content management systems and lead developer for Teachinghistory.org. Experienced in web software analysis and design, PHP software development, and relational database architecture. BS in Computer Information Systems from Missouri State University; pursuing MS in Applied Information Technology from George Mason University.

Lead video editor at CHNM. BA in Communication Arts from Allegheny College specializing in Video Production. Produced more than 350 videos, including interviews with historians and teachers, montages, and classroom filming. Also produced seven-part radio mini-series and documentaries accepted into film festivals.

Senior Web Designer/Creative Lead at CHNM. Diverse experience in graphic design, web design, science museum exhibit research, and science journalism. PhD in sociology from Cornell University emphasizing mass media and sociology of science. Formally studied graphic design at Virginia Commonwealth University.

Webmaster and Technical Coordinator at CHNM. MA in history from George Mason University; currently enrolled in doctoral program. Research interests focus on the history of the Church of Jesus Christ of Latter-day Saints in Germany.