Gluck started High School at Lycée Fustel de Coulanges, located next to the cathedral and he finished High School at the Lycée Kléber, closer to home, since the family had moved, and then went on to complete his medical studies at the Université de Strasbourg.
Deciding to go back to France, he joined the French Army on 16 September 1939 and he was sent to the front, on the Maginot Line, as a second lieutenant, from 1939 to 1940.
Nevertheless, he did work as a physician in a Children's Home at Broût-Vernet (Allier), catering principally to young teenage orphans.
Taken to Montluc Prison in Lyon, then to Drancy (Drancy internment camp), next to Paris, on 11 May 1944, under the number 21530, he was deported on convoy 73, one of the rare trains from France carrying only men, and with the final destination being not Auschwitz, but Kaunas in Lithuania or Reval now called Tallinn in Estonia.
[1] His name is inscribed on his father's tomb in Haifa, Israel, and on the Mur des Noms, at the Mémorial du Martyr Juif Inconnu, in Paris, France, as an eternal remembrance.