Lockhart Hall arch will be named for Kentaro Ikeda, Class of 1944. Photo by Nick Barberio, Office of Communications March 29, 2023 Ruha Benjamin, the Alexander Stewart 1886 Professor of African American Studies Christopher Chyba, the Dwight D. Eisenhower Professor in International Affairs and professor of astrophysical sciences Jonathan Levine, the J.N. Allison Professor in Environmental Studies and professor of ecology and evolutionary biology Denise Mauzerall, the William S. Tod Professor of Civil and Environmental Engineering and Public and International Affairs Arthur Spirling, the Class of 1987 Professor of Politics, effective July 1, 2023. Keeanga-Yamahtta Taylor, the Hughes-Rogers Professor of African American Studies, effective July 1, 2023.