Albert Einstein with John von Neumann (in background), Marston Morse, and others

According to Louise Morse, Mario Laserna organized a meeting in Princeton in the late 1940s in celebration of the University of the Andes, which he helped to found in his native Bogota, Colombia. Pictured are, front row: Dana Munro, Whitney Oates, Albert Einstein, Laserna, Marston Morse, Solomon Lefschetz

back row: John von Neumann, Oskar Morgenstern, and Samuel Wilks.