Yoseph was born January 1,1924 in Jerusalem. His father Chaim (Victor), and mother Joya, were Jerusalem-born; they had five children.
Chaim, among the first Hebrew Brigade’s founders who fought in Gallipoli, had British Citizenship and administrated a British base, enabling him to assist the Hebrew Defence forces greatly. He instilled national pride in his children, inspiring Yoseph to join Lehi and his two brothers to join Palmach. Yoseph studied at “Alliance” Elementary, graduating from high-school externally. In 1939 the family moved to Haifa where he joined Maccabi sports, and in 1944 joined Lehi.
He underwent an ideology and weapons-training course end of 1945. He participated in blowing up Na’aman Bridge, and in 1946, in the Railway Workshops Operation Haifa. where he was seriously injured then imprisoned in Akko. He stood trial and was sentenced for execution, with eighteen other members from this operation, for execution. He spent two weeks in solitary confinement with those condemned, until their punishment was converted to life-imprisonment.
During the Akko Prison break-in May 1947, he was part of the first group to escape, but was again seriously injured, captured, and returned to prison. A few months later he was transferred with the Jewish prisoners to the Central Prison, Russian Compound Jerusalem. On February 20,1948 he was among this prison’s escapees, via a tunnel and sewers. Two days later, during the major Ben-Yehuda St explosion, his hideout collapsed, but this time he sustained only minor injuries.
After the British departed, he was a reporter for “Mivrak” newspaper Haifa, until it closed. After Count Bernadotte’s assasination he was arrested, this time by Israeli Authorities, and imprisoned in Akko. He was not conscripted to the IDF due to his injuries; his disabilities were later officially recognised. Nonetheless, he volunteered to serve, and was called on occasionally for Reserve duty.
Yoseph married Leah Tselniker 1951, fellow Lehi member he’d met 1948, after his escape from Jerusalem Prison. They have three children, six grandchildren. Since 1951 they’ve been running an independent insurance agency in Jerusalem. Yoseph paints and informally studies painting in “Betsal’el Art School” .