 In Paris, his father ran a grocery shop and his mother served as a cook at a Jewish girls school, and he became a butcher.In 1953, the family moved to New York City, where he and his partner opened Lieberman & Rubashkin Glatt Kosher Butchers on 14th Avenue in the Borough Park section of Brooklyn.He was the head, usually referred to as "patriarch", of the Rubashkin family, dubbed a "kosher meat dynasty" by "The New York Times".