Sergey Prokudin-Gorsky
Sergey Mikhaylovich Prokudin-Gorsky (, ;  – September 27, 1944) was a Russian chemist and photographer. He is best known for his pioneering work in colour photography and his effort to document early 20th-century Russia.
Mykola Stsiborskyi
Mykola Stsiborskyi (), also may be spelled Stsiborsky, Stsyborsky, Ściborski, or Sciborski (1897 – August 30, 1941) was a Ukrainian nationalist politician who served on the "Provid", or central leadership council of the Organization of Ukrainian Nationalists (OUN), and who was its chief theorist. He sided with Andriy Melnyk when the OUN split into two hostile factions, and was likely murdered by followers of Melnyk's rival Stepan Bandera.