| Personal data |
| Surname | Vald |
| Name | Grigory |
| Patronym | Borisovich |
| Birth year | 1938 |
| Birth month | 3 |
| Birth day | 18 |
| birth_place | Kharkiv, Ukraine |
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Ryabukhin Boris Moiseevich (1949)
| Personal data |
| Surname | Ryabukhin |
| Name | Boris |
| Patronym | Moiseevich |
| Birth year | 1949 |
| Birth month | 3 |
| Birth day | 18 |
| birth_place | Riga |
| Sex | M |
Ryabukhin (Rjabuchin) Boris Moiseevich (18 March 1949, Riga) — electronics engineer.
Boris Ryabukhin was the son of Natalia Ryabukhina (née Firkser; 1925, Riga) and Moisey Ryabukhin (1916, Riga — ?).
From 1971 to 1978 he worked as an electrician-mechanic at the “Spetsstal’konstruktsiya” plant in Riga. From 1978 to 1989 he was an electronics engineer at the research and production association “Soyuzmorinzhgeologiya.” From 1989 he worked as head of the supply department at the production association “Mara.”
Family:
Natalia Ryabukhina (née Firkser; 1925, Riga) — mother
Moisey Ryabukhin (1916, Riga — ?) — father
Riva Nusinskaya (née Bek; 1949, Riga) — cousin