Ephraim Greenblatt (1932–2014) was a rabbi and halachic authority in the United States, and at the end of his life in Jerusalem.
He was famous for his many halachic answers[1] and is considered a leading disciple of Moshe Feinstein.
[6] Poverty, being the oldest of 11 children, and a suggestion from his paternal grandfather[4] brought him to America and Moshe Feinstein's Mesivtha Tifereth Jerusalem;[7] Greenblatt is considered a Talmid Muvhak of Rav Feinstein.
He served there for 58 years as a local rabbi, Av Beit Din, Rosh Yeshiva, Rosh Kollel, educator, shochet and mohel,[8][9] at which point he returned to Israel, three years before his death.
His return to Israel was caused, at least in part, due to being defrauded by Bernie Madoff.