Born in Yemen Vilayet in the Ottoman Empire, Glosca made aliyah to Ottoman-controlled Palestine in 1909. His family settled in the Tel Aviv neighbourhood of Neve Tzedek, and he studied in a heder. Aftwards he worked as a factory labourer, and an agricultural labourer in orchards around Petah Tikva.Zecharia Glosca: Particulars Knesset website
