Born in
Vienna in
Austria, Katz
emigrated to
Mandatory Palestine in November 1938 as a child of ten following the
Anschluss and the Nazi rise to power. He arrived in Palestine as part of a
Youth Aliyah group of children, which were organized with the consent of parents eager to have their children saved from being arrested and deported to
Nazi concentration camps. His parents and sister also succeeded in emigrating to Palestine in the summer of 1939, but were soon expelled to
Mauritius, where they lived until 1946, when the family was finally reunited. Part of the extended family was killed in
the Holocaust. Katz originally studied
agriculture at the Ahava
youth village until 1944, while simultaneously through intense self-study, completing his matriculation in an outstanding manner. As a result, he was awarded a scholarship by the British Mandatory Government but chose to study science at the
Hebrew University of Jerusalem from 1946 until 1947. During the course of his studies, he began working on the treatment of
delinquent youth in a poor neighborhood of
Jerusalem. On the eve of the
1948 Arab–Israeli War, he joined the
Israel Defense Forces (IDF) serving in the Intelligence Services. He returned to the Hebrew University between 1948 and 1949 to study humanities, before joining the
Columbia University School of Social Work in
New York City in 1951, where he studied psychiatric
social work. Upon completion of his qualification at Columbia, he returned to Israel to work as a supervisor of
special education for Youth Aliyah, then still an emerging discipline in the newborn State of Israel. He later headed
Kiryat Ye'arim Youth Village for distressed youth who were unable to adjust to regular educational frameworks. Between 1959 and 1961, he studied and completed his doctorate in Social Work Administration at
Case Western Reserve University in
Cleveland, Ohio. ==Dean of School of Social Work at the Hebrew University==