Timothy R. Barakett ’87 and Mariano-Florentino “Tino” Cuéllar ’93 have been elected the newest members of the Harvard Corporation, the University’s highest governing body, the University announced Monday. Barakett and Cuéllar will replace outgoing Corporation members Susan L. Graham ’64 and Jessica T. Mathews ’67, both of whom already planned to depart the Corporation, on July 1. William F. Lee ’72, the senior fellow of the Corporation, said he is looking forward to Barakett and Cuéllar beginning this summer and pointed to the expertise each of them brings to the 13-person body that includes University President Lawrence S. Bacow.