Career
He was a disciple of the Baal Shem Tov and the Maggid of Mezritch, and published one of the first works of Hasidic thought. His yartzeit is on 11 Cheshvan. After the Baal Shem Tov"s passing, R" Nochum accepted the Maggid of Mezritch as his mentor.
His book Maine"or Einayim (Light of the Eyes) was published after his death, and contains a collection of his homilies concerning the weekly Torah portions and selections of the Talmud.
The book gained widespread acceptance as one of the major works of Hasidic thought. The surname would become known as Twersky in the United States.
The Chernobyl dynasty branched into a number of successive dynasties through Mordechai"s eight sons, including those of Skver, Rachmastrivka, Trisk, and Talner. Rabbi Nochum"s daughter, Malka, married Rabbi Avraham of Korostyshiv.
Their daughter, Chava, wife of Rabbi Shakhna of Pohrebysche, was the mother of Rabbi Yisroel Friedman of Ruzhin.