From left to right, standing: Solomon Lefschetz, Marston Morse, Evgenii Frolovich Mishchenko, Revaz Gamkrelidze, Louise Morse, Lev Semenovich Pontryagin. Seated (l. to r.): Mrs. Lefschetz and Mrs. Pontryagin.
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From left to right, standing: Solomon Lefschetz, Marston Morse, Evgenii Frolovich Mishchenko, Revaz Gamkrelidze, Louise Morse, Lev Semenovich Pontryagin. Seated (l. to r.): Mrs. Lefschetz and Mrs. Pontryagin.