How many mars supermarkets did mars operate in the baltimore area? Mars operated 13 supermarket locations in the Baltimore area. The idea for Mars supermarkets came in the early 1940s from Joseph D'Anna, whose location for his upstart grocery store was an apartment complex in Essex, Maryland, called Mars Estates. Nearby, Glenn L. Martin was developing an airplane called the Mars Flying Boat...How many marsh supermarkets are there in the us? Of the 97 locations, 69 were marketed as Marsh Supermarkets, three were O'Malia's Markets and 25 were the MainStreet Market banner. The company's founder, Ermal Marsh, was able to hold together his first store throughout the Great Depression and World War II.Who is the owner of mars? Mars (supermarket) After the company incorporated, Vincenzo F. D'Anna, their father, was elected to the board of directors as Chairman. In 1955, Anthony was made a partner and owner in the business. After leaving the grocery business, Joe took over the operation of a restaurant from another younger brother, Vince D'Anna.When did mars close all of their stores? In May 2016, Mars announced that all 13 stores would close by July 31, 2016, with five locations being acquired by Weis Markets. The company stated that they have struggled with declining sales for several years.