I have not found out by whom Roland Guy from Swizerland was advised in Paris. Guy (1919 – 2006) later became a
mathematics professor in Canada. The same ignorance applies to the late Saiyid Izhar Husain (professor at Aligarh Muslim
University, India). The thesis of P. V. Grosjean was handed in at the University of Liège “sous patronage Pr. Lichnerowicz,
Collège de France”. There were also those like Nguyen Xuan Xinh who, as a theoretician, wrote his thesis at the university of
Paris in 1966 on Raman spectroscopy but then published an occasional paper concerning Born–Infeld theory. I assume
that there must have been around many more master’s degree students as among them, perhaps, Huguette
Chevalier.