The only reason that I know about the Ukrainian genocide is that my father . . . told me about it when I was a boy.
Did he mention any name(s) in connection with it? For example, Nikita S. Khrushchev who, IINM, had a prominent role in carrying it out.
Take a look at this link
it is a news release by the Ukrainian Security Service (ie former KGB) about the Genocide and who were the main culprits