Tzadok’s parents were religious Zionist Jews and related to the Raab family who were among the founders of Petah-Tikva.
Tzadok joined “Bnei Akiva” at the age of fifteen. From 1939 he worked as an instructor in Budapest and was among the founders of garin A of Bnei Akiva in Hungary and within that framework went on a hahshara. From 1942 he gave assistance to refugees from Poland and Slovakia.
After the Germans invaded Hungary on 19.3.1944, Tzadok dealt with the forgery and distribution of documents. He traveled to the towns of Nagyvárad and Kolozsvár in order to give forged documents to the local Jews and persuade them to escape from the deportations to the east. He was expelled from most of the places by the Jews themselves who accused him of diffusing tragic news.
When Tzadok returned to Budapest, he became active in the framework of the tiyul. Even after his partners in this activity, David Friedman and David Asael, were arrested by the fascists, Tzadok continued with his underground activities.
Tzadok was among the compilers of the list of members of the movement who were to leave Hungary on the train of the Relief and Rescue Committee. Tzadok himself left Hungary on this train. On the journey that lasted about six months, he took care of the education of children passengers.
At the beginning of 1945 Tzadok arrived in Eretz Israel (Palestine) where he stayed at Kibbutz Masuot Yitzhak in Gush Etzion. He fought in the War of Independence and fell prisoner to the Jordan Legion. He stayed in captivity for ten months.
After Tzadok returned from captivity, he settled down in Haifa with his wife, Shoshana. He was a forest ranger for the Keren Kayemet Le’Israel for 36 years.
He resided in Moshav Atzmona.