Pavel Matveyevich Olkhin
1830 - 1915 (Petrograd)
Russian popularizer of science and technology, stenographer, editor, and translator. In the beginning of the 20th century, together with Prokudin-Gorsky he was among those in charge of the 5th Department of IRTS (one of its "indispensable members"). In his farewell address to the readers in Issue 12 of Fotograf-Lyubitel journal in 1909 Prokudin-Gorsky highly recommended Olkhin's publication "Fotografichesky vestnik" (Photography Herald).