Marsha L. Semmel is an independent consultant working with cultural and educational organizations on leadership development, strategic planning, and partnerships. Recent publications include Change Is Required: Preparing for the Post-Pandemic Museum (co-editor, 2022) and Partnership Power: Essential Museum Strategies for Today’s Networked World (2019). Semmel has been senior advisor/faculty for the National Center for Science and Civic Engagement, the Noyce Leadership Institute, the SEMC Executive Leadership Institute, the Smithsonian Institution, and the Bank Street College Graduate program in Museum Leadership. Semmel served in leadership roles at the Institute of Museum and Library Services (IMLS), including interim director, and the National Endowment for the Humanities (NEH). She has been president/CEO of Conner Prairie, in Indiana, and Women of the West Museum in Denver. Current board service includes the Planet Word Museum in Washington, DC, and MOCA Arlington. Ms. Semmel served on the Arlington Commission for the Arts from 2014-2020, ending her term with two years as Commission Chair.

Dan Tadmor joined the Weitzman National Museum of American Jewish History in January 2025, having most recently served as CEO of ANU–Museum of the Jewish People in Tel Aviv. With a career marked by transformative leadership, Tadmor has been at the helm of prominent organizations, driving growth, innovation, and strategic reinvention across media, cultural, and nonprofit sectors for nearly four decades. At ANU, Tadmor led a decade-long, $100 million transformation of the institution, formerly known as Beit Hatfutsot, into the world’s largest and most comprehensive museum of its kind. Under his leadership, the museum has become a vibrant, award-winning hub for Jewish identity and culture, recognized for its innovative Core Exhibition, global reach, and dynamic educational programming. A voracious reader with a passion for American history, Tadmor eagerly anticipates the commemorations that mark America’s 250th in 2026. He is spearheading the Weitzman’s semiquincentennial plans from the institution’s home base on Historic Independence Mall in Philadelphia which include a special exhibition in tandem with the first phase of the Weitzman’s renewal. Prior to his work with ANU, Tadmor held executive leadership positions with major publishing and broadcast media companies in Israel. He lives in Philadelphia with his wife, Dana. They have three children and two grandchildren.

Dr. Josh Perelman is Principal of Studio Perelman and Senior Advisor for Content and Strategic Projects at the Weitzman National Museum of American Jewish History. He is a historian, curator, and museum leader with over 25 years of experience in strategic planning, interpretive planning, exhibition development, capital projects, educational initiatives, and public programming. Perelman oversaw the creation of the Weitzman’s landmark core exhibition that inaugurated its new building, served as its chief curator, and now has a leading role in transforming The Weitzman for the 250th celebrations and as a 21st-century museum experience. To these efforts, he brings a passion for creating opportunities for people to examine their connections, participate in dialogue and debate, and share lives and dreams – in surprising and experiential ways. Josh holds PhDs in Jewish Studies and American History from NYU.