Julian Henri Preisler is an archivist and genealogist in the Eastern Panhandle region of West Virginia. He formerly ran a website about West Virginia Jewish history.

Sharon Miller is the principal of Ben Gamla Charter School in Hollywood, Fla., the first publicly funded Hebrew-language school in the U.S.

Jack Kugelmass is an anthropology professor at the University of Florida in Gainesville, where he is also director of its Jewish studies center. He specializes in American and European Jewry, Israel and Jews in New York.

Andrea Greenbaum is an associate professor of English at Barry University in Miami Shores, Fla. She is the editor of Jews of South Florida and is also an expert on Jewish graphic novels.

Rabbi Martin Beifield Jr. leads Congregation Beth Ahabah, a Reform synagogue in Richmond, Va. He is an expert in Jewish-Christian relations and the impact of the Holocaust.

David Ruderman is director of the Center for Advanced Judaic Studies at the University of Pennsylvania, where he is also a professor of modern Jewish history. Contact 215-238-1290.

Jonathan Helfand was a professor of modern Jewish history at Brooklyn College in New York until his retirement in 2012. He specialized in French Jewry.

Gershon Greenberg is a professor in philosophy and religion at American University in Washington, D.C., where he specializes in Jewish philosophy and thought, especially in America.

Sharon Flatto is an assistant professor in Judaic studies at Brooklyn College in New York, where she specializes in modern Jewish thought and the Kabbalah. She teaches courses in modern Jewish history and thought and in Hasidism.