Mizrokh Kalman (1869, Dvinsk) — industrialist, civic figure, philanthropist. From a family of merchants. From age 15, employed at his father's enterprises and at 20 opened his own business. Developed extensive civic activity in Dvinsk — in Bikkur Holim, Talmud Torah, Chevra Kadisha. Member of the board of the Dvinsk Trade Bank. During the war, moved to Vitebsk and became a leading figure in civic life there, as well as in banking. After the war, settled in Riga, where he achieved great success not only as a major industrialist but also as a major civic figure and philanthropist in “Keren Hachinuch” (Education Fund), “Heder Klali,” and yeshivas. At the invitation of President Kviesis, participated in the building of the monument to the liberators of Latvia.