Potash (Potasch) Iosif Naumovich (b. 1901, Daugavpils) — tinsmith.

Iosif Potash began his studies at a primary school in Daugavpils in 1909 but was forced to leave in 1919 due to family circumstances. Until 1941, he worked as a tinsmith at a private enterprise. In 1941, he was imprisoned in the Daugavpils ghetto and later transferred to a concentration camp in Germany (Magdeburg). After liberation, in 1944, he volunteered for military service (2nd Libau Infantry Regiment).

Following demobilisation, he returned to his primary profession and also worked as a stoker and as a tramway track labourer. In 1947, he married Mary Brant (née Tild) (1914); their daughter Nina was born in 1948. In the 1970s, he lived in Daugavpils.

Family:

Mary Bentionovna Brant (née Tild) (1914) — wife
Nina Iosifovna Brant (1948) — daughter
Naum Izrailevich Potash (1887–1937) — father
Khaya Zusmanovna Potash (née Berman) (1890–1936) — mother
Paul Semyonovich Brant (1941) — adopted son
Max Naumovich Potash (1909) — brother