Question: Who was born in an earlier year, Ivan Fesenko or Alexander Gelfond
Sentence (from "Ivan the Terrible (Treblinka guard)"): Already in 1944 a cruel guard named "Ivan", sharing the distinct duties and the extremely violent behavior with a guard named "Nicholas", is mentioned in survivor literature ("Rok w Treblince" by Jankiel Wiernik, translated into English as "A Year in Treblinka" in 1945); however, very little is known about Ivan Marchenko.
Relevant evidence: No