He also gave a daily Torah lecture between Mincha and Maariv at the Young Israel of Pelham Parkway in Bronx Park East, New York.
Prior to World War II Yankelewitz studied at the Mir Yeshiva (Belarus) and was considered a Talmid Muvhak (special student) of Rabbi Yerucham Levovitz, the Mashgiach of Mir.
Yankelewitz also studied in Raduń Yeshiva, where he developed a close relationship with Rabbi Yisrael Meir Kagan (known as the Chofetz Chaim).
This was an unusual exception to the established norm, which stipulated that only college graduates were to be Roshei Yeshiva in YU.
[8] A notice about her death and condolence wishes from the administration of YU was published in The New York Times.