Kaplun Yuri Lvovich (17 August 1937, Pushkin, Leningrad Region, RSFSR) — mechanical technician. Until 1955 Yuri Kaplun worked as an apprentice fitter and fitter at the Regional Construction Trust in Nikolaev, Ukrainian SSR. From 1955 to 1957 he worked as a fitter at a classified plant in Nikolaev. From 1958 to 1960 he served in the army in Unit No. 01980 in Ufa, Krasnoyarsk Krai. In 1960 he worked as a fitter at the Nosenko Plant in Nikolaev. That same year, he moved to Riga, where he worked at Military Unit No. 61808 (1962–1964) and at the Riga “Kompressor” Plant (1960–1962, 1965–1967) as a fitter and engineer. In 1969 he graduated from the Mechanical-Technological Technical College of the Food Industry, qualifying as a mechanical technician.

A member of the CPSU, he left the Party in 1977 in connection with his emigration to Israel.

In his marriage to Kaplun (née Khirshovich) Tsvia-Karmella (1937, Tartu) were born their children: Leonid Kaplun (1965, Riga) and Lina Kaplun (1972, Riga).

His father and brothers — Lev Kaplun (1900–1940), Artur Kaplun (1927–1942) and Kaplun Boris (1933–1942) — died during the Siege of Leningrad. His mother, Kaplun (née Manteifel) Raisa (1905, Rezekne – 1976, Riga), was buried in Riga.

Family:

Tsvia-Karmella Kaplun (née Khirshovich) (1937, Tartu) — wife
Leonid Kaplun (1965, Riga) — son
Lina Kaplun (1972, Riga) — daughter
Lev Kaplun (1900, St Petersburg – 1940, Leningrad) — father
Raisa Kaplun (née Manteifel) (1905, Rezekne – 1976, Riga) — mother
Artur Kaplun (1927, Moscow – 1942, Leningrad) — brother
Boris Kaplun (1933, Kolpino, Leningrad Region – 1942, Leningrad) — brother
Khaya Westerman (née Khirshovich) (1930, Paris) — sister-in-law