Originally Posted by Sarn

Igor Sikorsky was an Orthodox Christian. According to the "Sikorsky Archives News" his ancestors were priests of the Russian Orthodox Church originated sometime during the reign of Peter the Great,[15] which is the time when the Ukrainian Orthodox Church was merged into the Russian Orthodox Church (see Ukrainian Orthodox Church merger). When he responds to questions regarding his roots, he would answer: "My family is of Russian origin. My grandfather and other ancestors from the time of Peter the Great were Russian Orthodox priests. Consequently, the Russian nationality of the family must be considered as well established". By the start of World War I in 1914, Mr. Sikorsky's airplane research and production business in Kiev was flourishing, and his factory made bombers during the war. After the Bolshevik (Communist) revolution of 1917, Igor Sikorsky fled his homeland, because of the new government threatened to shoot him. He moved to France where he offered a contract for the design of a new, even more powerful Muromets-type plane. But in November 1918 the war ended and the French government stopped subsidizing military orders, then few months latter he arrived in the United States in 1919.
https://en.wikipedia.org/wiki/Igor_Sikorsky



PS: ha ha ha