Singer (née Gorovaya) Sima Khonovna (7 November 1946, Daugavpils) — chemical laboratory assistant.

Sima Singer was born into the family of Khona Moiseevich Gorovoy (1906, Dvinsk, now Daugavpils), a worker, and Khaya Samuilovna Gorovaya (1910, Dvinsk), a homemaker. After completing secondary school (1952–1963), she moved to Riga, where she worked at the Central Pharmaceutical Warehouse (1964). She graduated from Vocational School No. 1 (1964–1965, Daugavpils), and worked as a laboratory assistant at the Daugavpils Chemical Fibre Plant (1965–1967) and at the Riga Autoelectropribor Plant (1967–1971).

Married to Aron Matveevich Singer (1940, Kazan). Their daughter, Tzviya Aronovna Singer, was born in Riga in 1970.

In 1971, Sima Singer received permission to emigrate to Israel, where her sister Ethel Khonovna Feygerson (née Gorovaya) (1935, Dvinsk), her husband’s sister Sima Matveevna Livshits (née Singer) (1933,Kazan), and her husband’s uncle Moshe Atovich Peleg (né Feygerson) (1916, Liepāja) were already living.

Khona Moiseevich Gorovoy (1906, Dvinsk) — father
Khaya Samuilovna Gorovaya (1910, Dvinsk) — mother
Ethel Khonovna Feygerson (née Gorovaya) (1935, Dvinsk) — sister
Aron Matveevich Singer (1940, Kazan) — husband
Tzviya Aronovna Singer (1970, Riga) — daughter
Moshe Atovich Peleg (né Feygerson) (1916, Liepāja) — husband’s uncle
Sima Matveevna Livshits (née Singer) (1933, Kazan) — husband’s sister