Sir John Edward Cohen (6 October 1898 – 24 March 1979), born Jacob Edward Kohen and commonly known as Jack Cohen, was a British businessman who founded the Tesco supermarket chain. He was born in Whitechapel in the East End of London, the son of an Avram Kohen, an immigrant Polish-Jewish tailor, and his first wife, Sime Zamremba.( http://en.wikipedia.org/wiki/Jack_Cohen_(Tesco) )
Tesco started life in 1919 when Jack Cohen started selling surplus groceries from a stall in the East End of London. Mr Cohen made a profit of £1 from sales of £4 on his first day.The Tesco brand first appeared five years later in 1924 when he bought a shipment of tea from a Mr T. E Stockwell. The initials and letters were combined to form Tes-co and in 1929 Mr Cohen opened the flagship Tesco store in Burnt Oak, North London.
The brand continued its rise in the 1930s when Mr Cohen built a headquaters and warehouse in North London, and in 1932 Tesco became a private limited company. In 1947 Tesco Stores (Holdings) Ltd floated on the stock exchange with a share price of 25p.( http://www.telegraph.co.uk/finance/markets/2788089/A-history-of-Tesco-The-rise-of-Britain's-biggest-supermarket.html)