NEW YORK — But for the Star of David mosaic and the mezuzah in the entrance, there’s little to suggest that the same Jewish family has run the Teitel Brothers grocery store for over a century. Located on Arthur Avenue and East 186th Street in the Bronx, Teitel Brothers is the oldest continuously run business in the neighborhood and the last surviving Jewish-run store. Here, customers can buy prosciutto and parmigiano every day of the year, save for Rosh Hashanah and Yom Kippur. The corner shop, still in operation in the heart of the Bronx’s Little Italy after Jacob and...