Baruch was born on 29.10.1929 in Montevideo, Uruguay, to Bluma and Yeshayahu. His father volunteered in the World War I to the Jewish Brigade of the British Army and fought in 1918 to liberate the Land of Israel from the Ottoman Empire. After the war, he settled in the Land of Israel. His mother made aliyah in 1926 and married his father. Due to the Great Depression, they had to return to Uruguay. In 1936, they returned along with seven-year-old Baruch. They settled in Tel Aviv. Baruch studied at the Tachkemoni School and the Montefiore Professional High School.

He was imbued with the nationalist spirit and love of the homeland at home, the Bnei Akiva youth movement and Brit Hashmona’im. In 1944, responding to the hanging in Cairo of Eliyahu Hakim and Eliyahu Bet-Zuri for the assassination Lord Moyne, he joined Lehi. Baruch joined the youth division and was sent to put up posters in Tel Aviv and its environs. While doing so in Petah Tikva, a student from the Montefiore School recognized him and informed on him. Baruch was expelled for his membership in “the Stern Gang.” He started looking for work, but “the national institutions” excommunicated the underground members, and many workplaces were closed to him. Afterwards, he joined Department 6, the intelligence division, and he was used mainly to surveil key members of the CID, police and Mandatory authorities. He also tracked collaborators from the Yishuv, including Hagana men and Saison operatives. He was sent to observe the enemy bases to see which would be good targets for the underground. He was trained in firearms, explosives and intelligence.

When the IDF was established, he and his fellow Lehi members joined the commando Battalion 89 of 8^th Brigade, participating in all its battles. After the war, he joined Kibbutz Neve Yair, which former Lehi members established in the western Negev. In the reserves, he fought in all of Israel’s wars.

Baruch fought for a better society, establishing the Hebrew Seniors Club together with the Tel Aviv Municipality. Many of its members joined Shurat HaMitnadvim, which fought against public corruption, assisted in the absorption of immigrants and taught them Hebrew. In 1955, he married Ruth Freidler. After her passing, he married Leah Zarman. He had four children and ten grandchildren.

After fifteen years running a family metals business, in 1969 he founded at the Mashbir HaMercazi the Nonferrous Metals Division. In 1992, he retired, but he continued his studies and activities until 1997. Afterwards, he worked in advertising and marketing. He graduated from the College of Business Management and took courses in productivity and marketing. He holds a bachelor’s degree in Jewish studies and the history of the Jewish people from the Open University.