Sergey Prokudin-Gorsky
In 1920, Prokudin-Gorsky remarried and had a daughter with his assistant Maria Fedorovna née Schedrimo. The family finally settled in Paris in 1922, reuniting with his first wife and children. Prokudin-Gorsky set up a photo studio there together with his three adult children, naming it after his fourth child, Elka. In the 1930s, the elderly Prokudin-Gorsky continued with lectures showing his photographs of Russia to young Russians in France, but stopped commercial work and left the studio to his children, who named it Gorsky Frères. He died in Paris on September 27, 1944, a month after the Liberation of Paris. He is buried in the Sainte-Geneviève-des-Bois Russian Cemetery.
Solomon Mogilevsky
Solomon Grigorevich Mogilevsky (; 1885 – March 22, 1925) headed the Soviet foreign intelligence service, the "INO" of the GPU, from 1921 until May 1922. He was then sent to head the GPU in the South Caucasus region, where was involved in the suppression of the 1924 August Uprising in the Georgian SSR. He died in a plane crash near Tiflis (Tbilisi) in unclear circumstances.