Despite being starved and beaten, the Jews continued to study Torah in secret, and risked their lives in order to fulfill the mitzvot (God's commandments).
[4] While in the Kaunas Ghetto and concentration camp, Oshry began writing his responsa regarding the Holocaust, answering difficult questions in such subjects as human nature, God, and Jewish ethics.
After the war, he retrieved them, and in 1959, he published some of the Hebrew responsa under the title She'eilos Uteshuvos Mima'amakim (Questions and Responses from the Depths).
An English volume of the original work (adbridged, with much of the halakhic argumentation removed), was published, titled Responsa from the Holocaust.
[3] In 1949, Oshry became engaged to his second wife, Frieda Greensweig, a daughter of Sigeter Hasidim, at the suggestion of her uncle Moshe Friserman, the Tomashover Rebbe.