Yosef Leifer (1891[1] – 7 March 1966) was the founder and first Rebbe of the Pittsburg Hasidic dynasty in Pittsburgh, Pennsylvania, which he led for 42 years.
His paternal ancestry goes back to Grand Rabbi Meir the Great of Premishlan, a disciple of the Baal Shem Tov.
[1] Before the First World War, Rabbi Yosef Leifer traveled to America to raise money to marry off his orphaned nieces.
They settled in Newark, New Jersey, where Rabbi Avraham Abba eventually established a Hasidic yeshiva and Talmud Torah.
[2] Rabbi Yosef died on 7 March 1966 (Shushan Purim 5726) in Denver, Colorado and was buried on Har HaMenuchot in Jerusalem.
Here he founded Yeshivas Tzidkas Yosef, named in memory of his father, as well as established a Torah school for children and a kollel for married men.